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    O2 Valley

    4.0 (32 reviews)
    Open 11:00 am - 9:00 pm

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    M5 PaoChung Matcha Milk Tea
    Michael Y.

    Excellent Taiwanese food and well-priced milk tea can be had here not far from San Francisco! This is a famous one from down South, and I'm glad it is so accessible with great parking in the area. The food was good and met expectations. It indeed was fragrant and aromatic liked the Fabled island (according to travel commercials). Oh, we had enough food to for at least several meals! Popcorn chicken order was filled Beyond the top of the box!! And the bit of chemistry even in the restaurant name is awesome.

    #R3 Grilled Chicken Cutlet Bento #R13 Minced Pork Rice Bento A3 Basil Popcorn Chicken K3 Grilled Taiwanese Sausage
    Anna Y.

    Was excited to try this new Taiwanese spot that opened, the 4 stars is really for the minced pork over rice. We got a few items to try out, the grilled chicken bento (which isn't actually grilled) was pretty sweet so that surprised me. I also wish they'd give me more minced pork on the rice , the sides were okay I think they change it depending on the week. We got their minced pork over rice bento and it was so good, it was just the right texture and flavor paired with the rice. We also got their popcorn chicken and sausage, the sausage was decent and the chicken I'm not sure I'd get it again. Overall I'd come back to try other stuff on the menu though.

    Dharma M.

    I've visited their Palo Alto location before, so I was excited to see this new spot open up. This location is a bit smaller than the one in Palo Alto, but it's a great addition to the neighborhood. ​The interior is simple. They have two touch screens for ordering, which makes the process incredibly simple and clear. While there is some seating and a standing area if you want to eat in, I noticed that most people (myself included) tend to order to go. ​I ordered the Basil Popcorn Chicken, and it did not disappoint: ​Texture: Perfectly tender and juicy. ​Flavor: Really yummy and well-seasoned. ​Quality: Even after the walk/drive home, it stayed nice and delicious while warm. ​Verdict: A solid, efficient spot for a quick snack or meal. I'll definitely be back to grab more chicken and order other dishes.

    Anna N.

    This is a Taiwanese bento box spot~ They give a generous portion which I was suprise to see! I ordered the basil popcorn chicken, grilled chicken cutlet bento, and the Taiwanese sausage bento. - The popcorn chicken was soo good!! Nice and crispy. The chicken was juicy and was cut very big. - I was slightly disappointed in the grilled chicken cutlet bento, I misunderstood what I was getting and thought it was a grilled chicken. I wasn't expecting it to be fried. The bento box also came with a cucumber & egg dish, napa cabbage, tea egg, and some minced pork on the rice. I thought the cucumber and Napa cabbage dish were very light in taste, almost bland, but it helped balance the grilled chicken cutlet.

    R3. Grilled Chicken Cutlet Bento
    Melissa C.

    I had tried the other location before so I was so excited to hear that O2 Valley opened another location in San Mateo! They are known for their bento boxes which can be great for takeout and packing for a meal. If you are dining in, you scan the QR code on your table to order. If you are ordering takeout, you order on the kiosk in the restaurant. The food was brought out quick within 5 minutes. The restaurant is a little small but still has several tables for seating. Items ordered: - Grilled chicken cutlet bento: The meat was on the sweeter side which I wasn't expecting, and I would've preferred a more savory flavor. But the meat itself was very tender and there were several pieces which made it worth it. Sides included rice with minced pork, cabbage, celery with chicken, and an egg. - Braised pork chop bento (boneless): I personally liked the braised pork chop better as it was more savory and tender. Came with the same sides as the other bento. Will definitely be coming back to enjoy more of their bento boxes which are very affordable for the amount that you get!

    The popcorn chicken was soso.  Batter needs more spices .   #R1 Stir Fry Basil Chicken Bento. Was also only ok - no basil flavor
    Carolyn T.

    They took over spot where my fav noodle restaurant was ! Nothing changed inside ... could use a remodel . Food was good and portions large . Music was wierd and too loud though ! I'd order again .

    Colleen L.

    So glad they opened an O2 here. Just like the Cupertino location, they offer the same basic, simple and fast Taiwanese bento boxes. They include the staples like popcorn chicken, chicken cutlet, pork belly with daily sides. You can order at the tablet kiosks or with the cashier. The wait time is very fast, you'll get your order in under 10 mins. The flavor here is a little lacking and can use some more seasoning. I ordered both the TS and popcorn chicken, both were a bit underwhelming. They have room for improvement and I'll try them again soon.

    Tiffany C.

    O2 Valley is another South Bay gem that just opened in San Mateo! We ordered their full-size bento boxes for dinner, and the portions were very generous--definitely enough to share. Each bento came with 3-4 slices of pork chop, which made it feel like a great value. We're excited to come back and try more items on the menu!

    Pork Cutlet Bento
    Cynthia M.

    Cute spot! I really wanted Taiwanese fried chicken so I had to come. We got a fried chicken and fries pork cutlet bento. SO much meat per order, very much appreciated!! Lots of breading and thin pieces. It felt like I was eating popcorn chicken strips with vegetable sides. Yummm. I love the vegetable sides in the bento! The vegetables made it feel like a full meal. The vegetable sides rotate. The menu pic has eggplant as a side, but we don't have that today! Very toddler friendly, because they have the red pepper powder on the side at the tables. My kid doesn't need to be scared he'll have a spicy bite! Love the spicy mushroom sauce they have near the water counter! It has fermented beans, mushroom, and red peppers! We wanted to eat there, but I didn't realize at the kiosk I have to choose the dining option to select 'eat here.' The dining option buttons for 'to go' and 'here' orders were placed in the same area as other food dish buttons, so I didn't see it for a while! I suggest to update the software so the dining option is the first or last question. Our food was ready so fast, I didn't even realize! We waited 10 minutes at the table when our food was just waiting at the counter. They also have paper bowls, but you'll have to ask for em! Excited to come back :)

    Braised pork belly bento
    Dan F.

    Just opened about a month ago. This spot use to house Noodleosophy, then was taken over by another group serving the same menu, and now it O2 Valley. I have tried their other locations in the South Bay and thought they were pretty good. I love the concept of Taiwanese bentos and that you can pop in, order on the kiosk, and it'll be ready in about 5 minutes or less. Pretty convenient. I hope they stick around for a bit. I liked Noodleosophy's curry katsu noodles, but at least I can still get that in their Millbrae location.

    #R4 Popcorn Chicken Bento
    Sydney C.

    This place was so yummy! I the braised pork belly and it came with broccoli, potato curry, and rice with minced pork! The minced pork and rice was amazing and tasted like home. The braised pork was a little dry and chewy but I don't mind. The broccoli had garlic which I really liked and the potatoes were just alright. They have different sides depending on the day. The popcorn chicken was also pretty good as well. We came on a Wednesday afternoon and there wasn't that many people. Also a good amount of tables and theres a qr code you order off of. Service was pretty fast and easy to take out also portions are huge! The total came out to be around 40 bucks which is a little pricey but still good!

    Megan S.

    This is a new favorite! Stopped in today for lunch with a friend and we will be back to try other options. The food came out so quickly and it was easy to order through the QR code on the table. The popcorn chicken bento was delicious and the sweet potato balls were as yummy and chewy as the last ones I had in Taipei! The tempura was a bit sweeter than expected but still delicious. I want to be back to try the cutlet and the mushrooms for sure. The portions were generous and everything we had was flavorful and fresh. Will definitely be back!

    Inside decor
    Raymond N.

    I went to O2 Valley in downtown San Mateo on the Saturday of its opening weekend. I actually didn't even know it was open until I saw an Instagram ad. I had to loop around for parking a couple times which was expected for a Saturday. Around lunchtime there were only two other parties waiting for orders and a few takeout orders were already ready on the shelf, though the shop quickly filled up after I ordered. The shop is a bit small, though there are quite a few tables and chairs available for dine in. Ordering is done on the kiosks by the counter as well as online on their site. I ordered the chicken cutlet bento and taro yogurt smoothie with boba, which I figured were safe options since I haven't been to any other O2 locations before. My order was ready approximately five minutes after ordering. The bento came with chicken, rice, egg, cabbage, and some sort of chicken and vegetable stir fry. The chicken cutlet was not greasy at all and seasoned very well, very similar to Taiwanese popcorn chicken seasoning. In general, I am not too big on veggies though I felt the provided side dishes complemented the chicken very well. The smoothie only comes in one standard size. I ended up ordering on a kiosk and this drink didn't have any customization options, though I noticed the online ordering allows for sweetness customizations; maybe kiosk ordering system can be updated to match the online system. Although a bit sweet since I wasn't able to adjust the sweetness, I thought the overall flavor of the drink was very good although I wish I could see inside the paper cup. Also, the boba is more on the firm side and a little too firm for my liking. Overall, I think O2 Valley is a nice addition to the 4th Ave side of downtown San Mateo. I do look forward to trying their other offerings whenever I am in the area.

    #R3 Grilled Chicken Cutlet Bento

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    5 days ago

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    4 months ago

    Great popcorn chicken. I loved the garlic version of it. Portion is great and the meat is lean

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    2 months ago

    Unable to order in website for pickup, when trying to change 15% tip. Order disappeared and screen went blank then turned white. Malware?

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    4 months ago

    Super large portion! Great taste too! Recommend. The basil popcorn chicken and fried radish are delicious

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    Seapot Hot Pot & KBBQ

    4.0
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    Came in on mothers day with my party of 4. Really disappointing experience with the front of house…read morestaff at Seapot San Mateo. The atmosphere felt chaotic and uncomfortable from the moment we walked in. One of the ladies at the front with a bob cut seemed extremely stressed and was yelling frequently, which honestly set a negative tone for the entire visit. Servers were great and attentive though even in such a busy setting shout out to them. I understand restaurants get busy, but customers shouldn't feel tension the second they enter. The overall FOH organization and professionalism could definitely be improved. PS if you pay around 1 hr they expect you to leave within 2 minutes even with our server letting us know kindly that we have 5-10 more minutes to wind down and finish up. Imagine getting told nicely you have around 5 more minutes to finish up then a FOH comes to our table and tells us to hurry up.... Overall amazing servers bad front of house.

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    Great chewy noodle texture and very flavourful!! Would definitely come again. There was a line but…read moreshort wait for the outdoor seating. Chill ambience, the space between tables was reasonable but you could clearly hear your neighbor's conversations at very loud volume.. we overheard a very spicy and shocking conversation from the table adjacent to us. At first it seemed like a lot of onions and chives but after mixing it was a good ratio of sauce noodles and toppings. Friend ordered the mozzarella cheese add-on topping and it was literally just a little bowl of the shredded mozzarella cheese you can get at the grocery store... so we joked that next time we can just bring our own cheese (BYOC) I ordered the homura aburasoba (spicy minced pork, green onions, bamboo shoots, seaweed, fish powder, chives with ajitama (soft-boiled eggs marinated in soy sauce, ramen egg)). Highly recommend this place to anyone who likes noodles !!

    Located in San Mateo I would rate this place a 3/5…read more Interior design is nice an beautiful. Service was okay most likely due to the large amount of customers coming in and out. A lot of the workers are busy so you have to flag them down and they rarely come check in on you Homura ABURASOBA 7/10 Chicken Marage 7/10 The food here definitely is packed with flavor but the portion sizing is significantly smaller than Elk Grove location. JD Big Back tip: if you get seated near the door you may be interested in bringing a jacket because it does get very windy and cold. Also if you want a spoon you will have to go to the front to request for one.

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    Taste & Glory

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    We walked in on a Saturday - right before the line got super long - and waited for 10 minutes…read more Staff greeted us and took our orders right away. The tables were really close together so it was a bit harder to maneuver around. It was easy for someone to bump into the table when passing by. For drinks we got the blue butterfly - which is on the sweeter side. We also got the iced biscoff latte but a bit disappointing. It wasn't sweet enough and you couldn't really taste the coffee. We really enjoyed our dishes - carbonara udon, crispy honey chicken Benedict and the ube pancakes. The carbonara udon was on par with the one we had in Japan. The chicken Benedict was full of flavor and the eggs were cooked to perfection. I've had better ube pancakes in the peninsula but they still tasted good!

    We saw that Taste & Glory had a lot of hype and mentions of long lines, but we thankfully got lucky…read moreone day and got in with 0 wait. Cute and quaint cafe in San Mateo with unique offerings. The thai tea french toast immediately caught my eye because I love thai tea and anything thai flavored in general. While it is presented beautifully, the flavor itself fell flat for me. Thai tea is known to have bold flavor and a strong tea taste. This was really lacking that. My partner got the chicken croffle and he loved it. I tried it and it is definitely something I'd order too! Chicken was nice and crispy and the croffles weren't dry or soggy, but the perfect in between. We liked that it came with both a savory sauce and syrup. I'd definitely return to try other things sometime.

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    Dough Zone Dumpling House - San Mateo

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    There are a few dumpling places in downtown San Mateo, so I was curious to see how this restaurant…read morefared. I went on a Saturday at noon and there was just one couple dining; when I left, there were 4-5 more groups. The inside of the restaurant looked aesthetically pleasing. The bathroom was quite old but clean. One of the 2 dispensers was out of soap, which I had hoped they would check as part of the restaurant opening and closing procedures. Our waiter was very friendly throughout the meal and offered food suggestions for us to consider. Beef pancake roll - unique seasoning. I liked how they included shredded lettuce for that crunchy texture. It was wrapped in green onion pancake, so it was a bit oily and required some chewing. My dad didn't care for this. I initially thought this isn't bad but by the end of eating my half, I was ok not ordering this again. I think it's worth trying once. Beef stew noodle soup - beef was flavorful but I needed to chew it a bit, so if you have elderly loved ones with dentures, keep that in mind! Noodles were al dente. My mom didn't like how the portion is very small. Pork & crab meat XLB (Xiaolongbao, soup filled dumplings) - First thing I thought when the server placed the bamboo steamer down on the table was, 'wow, these are SO small'. But regardless, I could definitely taste the crab, and the broth was flavorful and plenty. If I were to dine here again, I would order this. Chicken & vegetable boiled wontons in chicken soup - The skin of the wontons was springy and unique. The broth had sesame oil but otherwise was pretty mild/bland. My mother liked the broth from the beef stew noodle soup more. Pan fried chive dumpling - contained egg, glass noodles, and a lot of garlic and chives. Very yummy and would get this again. Pork & shrimp potsticker - was juicy. The skin a little thick. They came with a tiny side of sweet, sour, spicy pickled veggies. I thought this dish was mediocre. High tail shrimp & pork steamed dumplings - The pork was dense, which wasn't necessarily bad. The dumpling was slightly juicy but wasn't broth-filled. My mom didn't care for this dish. Overall, I would rate this restaurant a 3.5/5 but will round it up. My mom thought the food was quite mid and admitted it as such to the waiter after we paid the bill. I'm honestly not sure if I would return, given all the wonderful other cuisines/choices here in the downtown area - perhaps if I'm craving chive dumplings or crab dumplings again.

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    4.3
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    This is my first time trying this restaurant even though it's close (one of the main reasons I…read moretried them). So, my expectations were low since I had no experience with them although the reviews looked good! Also, and "against" my better judgement, I was going to order their soup to go (which doesn't always work well). However, I was sick and didn't want to leave the house. WOW! What a WONDERFUL SURPRISE! I only ordered their #1 popular item, the Spicy Rice Noodle Beef Soup with veggies. 1) Order was delivered within 15-20 minutes! 2) Everything was fresh & still hot 3) All items were separately bagged and/or combined where it made sense. 4) The beef was tender and delicious (NOT salty either) 5) Even though I mixed it, the entire meal was excellent! I do soup like this a lot in the area, and mostly dining-in, so to experience this kind of quality for take-out was exceptional! I am really looking forward to dining there, in person, and trying other items from, what appears to be, a pretty varied menu!

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    4.3
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    Needed a lunch spot that wasn't a three hour wait (lol Whisper) - and this place seemed to call to…read moreus. Upon entering, I noticed that it is a sister restaurant to the Lazhou Noodles but before we could change our minds, the hostess sat us (lol). I went with the main beef noodle soup, and we also tried the dry noodles with spicy beef. I was expecting the food to be very similar to their sister restaurant - BUT the food here was so much better I was SO surprised. The broth tasted better, the noodles were higher quality, and the beef was also much more tender and had less gristle. it made me wonder if it was a fluke or if this location was just that much better as this restaurant was also much more crowded versus the other locations. I can't wait to come back and bring friends, and though San Mateo is parking is not as friendly, the food experience definitely makes up for it!

    I've been to this place before and although it didn't make me a solid fan that I'd want to visit…read moreevery so often it did leave an impression that it's ok for a quick bite. I recently went back since I was in the area. The food is just as I remembered. The sauce is slightly overdone but the noodles are good enough. They did offer slightly more variety than I'd expect from this kind of restaurants. I think it's alright but probably not worth paying for parking in San Mateo for this. What I mean is that if you happen to be in the area then it's fine to dine here but probably not worth coming here just for the restaurants as there are alternatives outside of San Mateo where you don't have pay for parking. However the reason I gave 4 stars is that they give you enough meat on the noodle to make it slightly better deal even though everything in the Bay Area is overpriced. The service is really efficient and friendly enough. The restaurant is small and long) do I wouldn't suggest larger parties.

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