This place has been in Boulder forever. I remember it back in the days I went to CU but I never tried it until recently. The food is fine but its over priced. I've tried the cheeseburger which was tasty but small and messy and the corndog which also tasted good but was triple the price of other places. Maybe there is something I'm missing but I don't get its popularity. read more

My boyfriend and I ordered delivery from these guys when staying in Boulder for a few days and although there are so many good reviews, I didn't exactly find my experience the most pleasant. The guy who answered the phone wasn't friendly, more like rushed and rude. But I was willing to forgive that with good food. We ordered two Chicago dogs without the sauerkraut, a double cheeseburger, a buffalo burger, and their fries. While my boyfriend scarfed his food, I ate only about a third of the hotdog (which tasted a little off to me) and a handful of fries. And no less than five hours later I was stricken with violent food poisoning. Honestly I don't think we'll ever be going back. The food (except for the fries) was mediocre at best. There are much better hamburger places to go, I'd avoid this one. read more

Went to Mustard Last Stand and ordered my food, first off it took way too long, then they didn't deliver a dog and fries that I paid for. I was asked for my receipt in a harsh manor and I replied I was looking for it. Not long after that I was told to leave by some guy who acted like he would attack me if I didn't go. I paid for product and was charged but didn't get what I paid for before being kicked out for no reason. Don't do business here... read more

Pretty cool Chicago hot dog place. I really enjoy the Chicago dog had nice Spicer with a sports pepper they had a nice neon bright green relish and onions. I also came back another time and order the meat sandwich and it was okay I rather got the hot dog next time. A little pricey for a hot dog but the flavor and the quality of ingredients was on tip. read more

I went to Mustards for the first time. I live in Oregon and have not been able to find a proper Coney Island style or Chicago dog anywhere. But while visiting Boulder was introduced to this place. In my experience the Chicago dog and fries I ordered were spot on. A true Midwest experience and I would encourage anyone in the area to give it a go. Atmosphere and quality of food that truly speaks to any Midwesterner or anyone that's visited the Midwest looking for that flavor profile. A passion project of food that successfully hits the target. Thank you for the energy and love put into your products Mustards. Keep up the great work! read more

i ate here once and it was really mediocre. most people seem to super-dig the place, so i am absolutely not against giving it a second chance... buuuuut my first experience was really a bummer. i got a chili dog, and the chili was SUPER GROSS. read more

My husband and I frequently eat at Mustard's but not after today!! I found a hair on my tempeh burger and my husband let the cooks know and they made me a new one as well as new fries. I reached the bottom of the fries to find a french fry that had another hair smashed into it. It appeared to have finger impressions as if someone had pushed the hair into the fry with their fingertips. I let the female manager/owner know this and her answer was "well that happens". Both hairs looked like animal hair. After leaving, I vomited. HORRIBLE EXPERIENCE exacerbated by the lack of concern by the owner. No offer of a refund or another meal at another time - just "that happens". Hmm, seriously? NO THANKS! read more

This is good, cheap, and quick food that's local instead of chain, made with good ingredients by friendly people. The Tofu Dog is very good, their buffalo burger is ok, and their fries are made fresh and crispy. For what it is, it's a gem and beats anything like it easily. read more

I've never had a vegetarian hot dog that is even finish-able, the Vegetarian Chili Dog here is amazing! My gf got the Chicago dog and was pleased as well. Can't wait to go here again! Clean environment with friendly staff. read more

Should be this businesses last stand! Pretty sure they go to wal mart and pick the dogs up off the ground. The chili is bland as hell and it looks like they use government cheese read more

I was born in Boulder. As a child in the 80's, my parents took me to Mustard's A LOT. I always loved it. After moving away from Boulder and after getting my driver's license, my friends and I would drive down to Boulder, eat at Mustard's and go hang out on Pearl Street or The Hill. Now in my late 20's and living in Denver, I discovered a few years ago that there is another Mustard's on University & Evans. BOTH locations have never disappointed me. I still order the same thing I ordered when I was a kid, cheddar dog with a pickle, some cheese fries & a coke. Simple, yet always pleasing. Both Mustard's locations are deserving of 5 stars, but a walk in, order at the counter hot dog stand does not count as a 5 star restaurant in my opinion. This is the ONLY reason I did not give Mustard's a 5 star rating. read more

Love this place! There aren't many places in Boulder where you can buy lunch for $6. And I really like the old fashioned feel of the place. Makes you feel like you might really be in Chicago. I had the Tofu Rueben, and it's the best I ever had...loaded with mustard, sauerkraut, tomato, hot pepper, and grilled onions. It was delicious. French fries were $1.80 extra and tasted homemade which is nice, but not crunchy enough. My husband had the Soy Italian sausage with grilled onions, grilled peppers, and marinara and it was good too. We'll be back. And as I picked up my order, the owner looked at me and gave me a genuine thank you, which was nice. We'll be back. read more

I'm vegetarian, yet I love this hot dog place. Generally, fake meat disgusts me, but not these hot dogs. This is funny, because when I did eat meat, I hated hot dogs. Yet somehow, I love the fake hot dogs at Mustard's, and I especially love their french fries. I hear that the meat eaters like the real hot dogs, too, so there's something for everyone here. read more

This is the best place to get burgers, hot dogs and fries in Boulder, hands down! Their beef is natural, they serve buffalo burgers, the fries are hand cut daily! It's as good of quality food as you can get in the fast-food world. All food is made to order. Their chili cheese fries are amazing and there's lots of yummy vegetarian options. Great veggie burgers and veggie dogs! I loved this place as a veggie and love it even more now that I am again carnivorous! Avoid the line and call ahead for your order. They'll even give you a blanket to sit by the creek and eat your lunch! read more

Definitely one of my faves when I'm in boulder. Tad bit expensive for dogs but they do use top notch ingredients. The chili cheese dog is a meal in and of itself. not snobish enough to disallow ketchup. Fresh cut fries too. read more

I only ordered one thing a Chicago hot dog and it ended up taking forever because apparently my money is fine to take right away but my food is not. Thankful I won't be attempting this place again. read more

Mustard's Last Stand - Apparently this takes almost 15 mins if they decide to lose your order - Hot Dogs Near Me - Boulder, Colorado

Best dogs in CO. Sometimes I wish I could just live in their coolers. i need a hot beef injection

Been hearing about this place for years so finally went. Had a char dog and a double dog w/no bun and some fries. The dogs were good but nothing special and similar to the ones you can buy from the carts on pearl street. for the price ($13), i could have eaten at a number of downtown places and had a taster meal. the one highlight was taking the dogs to a spot on the lawn overlooking bolder creek and watching kayakers. read more

The first time I went into the place it was beyond amazing!! The service and food were just great! The guy with the beard really helped me by explaining the menu in depth. I kinda am a picky eater. He even gave me two redeemable envelopes to be redeemed after New Years!! So when I came back today I was beyond excited to see what I won and have some more awesome dogs. Unfortunately an older lady(seemed to be the owner) would not allow me to redeem them both and was VERY RUDE about it. If I have two why wouldn't you allow it since it did bring me back?? I still like this place anf if I happen to want some and she is working, I will choose another place to eat. All of the other staff was amazing!!! What kind of an example are setting for your staff Ms. Owner?? read more

Been to this place twice before. I thought it was just me, but I'm starting to think this place just isn't that good. As a matter of fact, I know it isn't. I had a German sausage w kraut. Dry and terrible. My wife had an Italian sausage w kraut. Even more dry and terrible, actually inedible. My kids liked their plain hot dogs, I assume because kids like just plain hot dogs. The fries are actually pretty good, can't complain about those. Now to what really bugs me, 53 cent drink refills. After I just paid $45 for 4 hot dogs, fries and cokes, it really bugged me that they wouldn't refill one of the drinks for free. I learned a long time ago in the restaurant business, "give em the pickle". Meaning, if you nickel and dime everyone, they won't come back. I had already given this place it's final chance, but the refill sealed the deal. read more

Mustard's is a beacon of awesome in a sea of blah. I think I might come back up here again when I'm in bum mood, order a Chicago dog and pretend I'm in for a day of wandering around Michigan Ave. :( read more

The only place in Colorado I have ever gotten food poisoning. I was out of commission for the next 3 days. I believe it was from the toppings on the Chicago dog because my sister had a plain hot dog and was fine. I called to let them know and dude was just like "oh, sorry." Never again. read more

This place is way too expensive 16 dollars for the smallest chicken sandwich with fries and the chicken was as thin as a piece of cheese no joke also the owner sounds like a douchebag he giving his employees a hard time over a damn tip jar placement and they looked like they were over it not a good place at all also...no free refills for your 3 dollar drink what a cheap ass. read more

Its so nice to find a place with gluten free options - that probably goes against the Chicago Hotdog Board of Reviewers Rulebook but whatever. And the vegan and veggie options are nice too! Hand cut fries were yummy! read more

Mustard's last stand is an average chicago hot dog place at best. i know its boulder but if you wanna call yourself a chicago place you shouldn't be serving vegan dogs or shouldn't even keep ketchup in your restaurant. They asked me if i wanted sauerkraut on my dog, that's a new york dog not chicago. The only thing that's truly chicago about this place is they serve Vienna Beef hot dogs. read more

Coming from Chicago I ordered a single red hot Chicago style and chili cheese fries. What I got was correct. For the first time in Colorado they served the dog on a poppy bun without ketchup. The dog was exactly like what I get at a stand in Chicago. It was coming on $5 which is a bit pricey. The chili cheese fries were okay. Nothing special though. However five stars for a authentic Chicago dog read more

This is a great place for a hotdog. No frills and easy on the pocketbook. I'm not so sure how good it is on the diet, but who cares when something is this delicious. read more

A plain hot dog is $4.50 ... You can buy a pack for that much! It would of been maybe worth $3 if it was grilled.

The main thing that caught my eye is the hamburger meat is all grass-fed, no antibiotics, and no growth hormones. The french fries are also made from real potatoes right there on the spot. It's nice to have a place that serves this kind of food with healthy ingredients! Also the service was pleasant! read more

Great Chicago dogs, and the cheese fries were crazy good!!

Good dog... nothing awesome... but ya gotta go just for the name! It's perfect for a bite to eat before strolling along the Boulder creek.

This is the best hotdog place. They have awesome Chicago-style hotdogs and all the fixins. They have great cookies too and Diet Coke. Quick service which is a plus when you just want to grab lunch. And the location is unbeatable. read more

Great Polish sausage and fries. Chilly cheese dog kinda a glob of mess, but tasted okay. Four stars!

Mustard's is decent, nothing to rave about in my opinion, some of the outdoor hot dog vendors are just a good. Mustard's just adds a little more to their menu with burgers and fries but otherwise their dogs aren't that different. Try Steve's Snappin' Dogs in Denver, that place is definitely worth it. read more

Great for a family outing. Kid's menu is a good price point for the younger ones, great fries, good hot dogs. Eat outside in the park, wade in Boulder creek, watch the tube-ers and kayakers, play on the slide and swings. We need more places in Boulder with authentic character. read more

Hot dog was a big disappointment. I wouldn't mind if it was priced at $2 though. You will walk away hungry, and regret ordering the fries if you do, they were cold, old, and tasteless. Complete waste of calories on microwave fries (actually even that would be better). Skip this place. read more

Mustard's Last Stand - If looking at this got you hungry - remember it wasn't nearly as good as it looks. Fries were bad too. - Hot Dogs Near Me - Boulder, Colorado

Mustards simply continues to be the best burger in Boulder and I would put it against any burger in the world. This place needs a few VC rounds and it will crush shake-shack. read more

Mustard's is a great place to get any Chicago craving you have. I personally love the Beef sandwich. The only time I have had better is when I visit Chicago. They also have amazing giardiniera peppers. I put them on everthing there. Try them out, they are the best dogs I have had in Denver. read more

We ordered a large chili cheese fry, Chicago dog, and chili cheese dog. The fries were over cooked and super hard. The chili cheese dog was kind of chewy. My wife enjoyed her Chicago dog. In all it wasn't anything spectacular and I wouldn't recommend it. read more

Great and hip little joint. Good food and very veggie-friendly. They have a great soy based hot-dog and even good veggie-chili. However, being from Chicago I can't say their Chicago-style hit the nail on the head, close but no cigar. But they make up for it with their extensive menu and other great options including really good dipping sauces for the fries; I recommend the Mango-Habenero or Parmesan Ranch. The staff is very friendly and the food comes quick. Definitely worth checking out! read more