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Avogadro's Number

4.0 (213 reviews)
Closed • 9:00 am - 9:00 pm
Updated 1 week ago

Order Avogadro's Number Takeout or Delivery

Avogadro's Number Photos

AVOGADRO'S NUMBER ATMOSPHERE

What's the vibe?
Live music
Casual
Moderate noise
Outdoor seating

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Recommended Reviews - Avogadro's Number

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Outside seating
Katie P.

Large sandwiches- good amount of options and fun location near campus. Came here with my family and I had the Lizzie which is a vegetarian option and the mushrooms had good texture and consistency. The onion rings were on the very crunchy side. Plenty of seating on a Saturday during the summer and two different live bands were in different parts of the building playing. Very fun vibe, can see how this spot is a campus favorite.

Tempeh Burger (+ 1 chunk of fish & chips)
Jill H.

Avos is a great place for a casual meal & live music venue. Catch a local band jamming on a Friday night and on the summer soak up the fresh air on the outdoor patio. First time back in a while and not disappointed. Food is good - I enjoy their tempeh burger which comes with standard fixings and plenty of fries. My husband got the Friday night only fish and chips. I sampled a few bites and thought they were tasty, too. Coupled with beer and cider from the bar and we were all set to enjoy the evening with local band Orchid Wave! It's fast casual style service. Order up front and they'll give you a number and bring out your food. No complaints. Bartender and employees were all helpful and friendly.

a dining area with tables and chairs
David C.

As an engineer, the restaurant's name stuck out to me right away (The number of units in one mole of any substance is called Avogadro's number or Avogadro's constant). I just knew I needed to check this restaurant, bar, music venue out. There just happened to be a blues band playing that day too! First off, the atmosphere of the place is really neat with a spacious and cool interior and also spacious and well decorated outdoors area. Plenty of space here to hang out! The food was amazing both in terms of price and taste. I was very surprised at the size of the sandwich for $13. I would highly recommend the Joe's Sandwich if you are a fan of cream cheese.

Veggie Steak Sub
savannah w.

Veggie steak sub was absolutely amazing and live music was great! My mom also really liked her tacos

Philly Cheese Steak Sandwich

Great location near campus while moving our daughter in at CSU. There were four of us and we each had a different sandwich. The sandwiches were large with soft yummy bread. We ordered the Philly Cheesesteak, Italian, Parmesan Sub and the Joe's. I paid extra to get homemade onion rings, and they were worth the price. Others in my party had side salads and they were fresh and large. We also tried a cookie that was the size of a small plate. Next time we plan to try one of their shakes. They have as many vegetarian options as they do meat. The location is quite large with plenty of seating inside or out. Orders are taken at the counter and then you do have to bus your own table. Prices were fair. Will definitely try again!

Joe's Sub
Becki H.

I've been here a handful of times for drinks at the bar and to enjoy the patio, but this was the first time getting food. I'd looked at the menu beforehand, but that still didn't prepare me for the specials they had written on the boards and on the screens above the order counter when we arrived! I was torn between the falafel, the cheesesteak and the special of the day - the chipotle black bean burger. After asking the cashier/server's recommendation, I went with the black bean burger (she was vegetarian, so that helped limit the options). My husband got Joe's Sub and took our number sign, I grabbed a can of kombucha and we went to the patio to enjoy the afternoon. We snagged a spot in the back corner and a few minutes later, our food was brought out to us. The pasta salad I got as a side (included in the price) was delicious! Creamy without being heavy, and a nice amount of salt from the diced olives. The chipotle burger left something to be desired - a generous amount of avocado, bright red fresh tomatoes, sweet white onions, but the patty was pretty mushy and disappointing. I'm fairly certain I've purchased the same patties at Costco. It also needed some extra crunch - I stole some of my hubby's lettuce to balance it out. My husband loved his sub! The bread was nice and soft and it was STUFFED full of turkey, lettuce, tomato, onion, cream cheese, bacon and avocado. I'd definitely get this sandwich next time I go! He begrudgingly offered me a few bites before demolishing the rest of it. A beautiful patio, helpful, kind and quick service, and some delicious entrees for a relatively cheap price! We wish we'd enjoyed this all summer before the college students come back, but we'll be back anyway!

a mural in a restaurant
Harlee S.

Avogadro's Number is so much more than just a sandwich shop. They are conscious about those who are vegan and vegetarian, while still serving up tasty food. I knew I had to try this place based on the fun and wacky pictures I saw on here. It's something amazing to see in person and a great way to decorate a restaurant and make it unique. This is a walk up and order establishment and I felt no rush to order. All the sandwiches and pairings sounded excellent and I liked that they had items that I was not familiar with like tempeh. At first, I thought the restaurant was very small, but soon realized that they have a big show room where they host concerts and such. There is also a big patio in the back of the restaurant. All you have to do is follow the restroom sign and it will lead you right to it. That's where I found majority of the people sitting and biding their time. I had the mogul sandwich with fries and wow the sandwich was good. The bread was soft and there was lots of turkey and other fillings inside. It definitely had a unique flavor and was very filling as I couldn't finish it. My mom and sister got the french dip which they said was delicious. The only negative I can find is that they made 3 french dips instead of the mogul sandwich I ordered so I had to wait a bit longer for them to get that made. However, it was definitely worth the wait! Overall, I would love to come back here to witness the concert scene and patio and try more of the wonderful food!

Tanner J.

Man, what a fun little hole in the wall! We came here to see a Grateful Dead cover band and got a couple sandwiches to go with us. I got the roast beef which was good, but the Philly cheesesteak was the real winner. The live music was awesome! Wish there were more fun spots like this. Oh, we also got the dairy free ice cream. Surprisingly delicious! Wouldn't take it over real ice cream, but still dang good.

Avo's Club Sandwich w/ pasta salad

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2 months ago

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3 months ago

The food is consistently very very good! 2nd Monday every month has Blues Jam from 6-9

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1 year ago

Cool vibes. Great food, live music. Drinks were reasonable and good. I would definitely go back and try more of their food items.

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2 years ago

Doesn't live up to the hype. Wasn't satisfied at all. Workers were friendly but I won't be back.

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2 years ago

Been a favorite spot for years. Love their homemade tempeh and outdoor patio space! They also have a fun music scene as well!

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6 years ago

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Ask the Community - Avogadro's Number

Review Highlights - Avogadro's Number

“I've seen some amazing shows at Avo's like The Infamous Stringdusters before they were selling out Red Rocks!”

Mentioned in 39 reviews

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The Colorado Room - Pork Banh-Mi Slider, Southwest Chicken Slider, and unknown slider (Cheesesteak? I forgot)

The Colorado Room

4.7(892 reviews)
0.2 mi
•$$

This place was awesome. From the second we stepped in the door the service was amazing. Super…read morehelpful and super friendly. Great concept. Love sliders and love poutine. So many choices. We will definitely have to go back to try more. Everything we had was amazing!!! If you get a combo you get $2 off an adult beverage. Nice touch. I got the cheesesteak and the rhine combo wirh classic poutine. My husband got meatloaf (a special) and the smothered chicken combo with classic poutine. My friend got bahn mi with chicken and buffalo chicken combo and tater eclairs. Her husband got southern chicken and bahn mi chicken combo with cheese curds. We also got the tater eclairs on the side with the brown sugar bacon aioli. Wow. I got the adult lemonade, my friend got the Ricky and her husband got the bourbon drink. The back patio area was nice. You order at the counter and they give you a number then bring it out to you when it's ready. We will absolutely be back.

2.5, edging down to 2 stars…read more Not the best food experience I've ever had. They're rated really high -- actually one of the highest-rated restaurants in Fort Collins -- and from a food perspective I don't really understand why. Sliders with sweet potato fries -- fine, nothing extraordinary. Potato éclairs -- . It was really just mashed potatoes with some topping on it. I honestly didn't even finish it. Mountain oysters -- huge letdown. They came out so overcooked they were basically crunchier than potato chips, with the batter crumbling off. I've never had them before, so I didn't get a good representation of how they're supposed to be -- these were just super-cooked batter. On the space: we ended up sitting in three different spots to eat. We went outside by the street first -- super loud, and people were smoking, so we headed back in. The open spot inside was right under the AC and about forty degrees, so we moved to the back area. The back was fine -- covered -- but pretty dirty, with mop buckets and clutter sitting around. The one drink I had was a good value since we were there at happy hour -- some kind of fruity whiskey drink. It was fine, but nothing I'd seek out again. I hate to give such a friendly place a bad review. It'd be a really great spot if you're a college student who wants some cheap bites and a drink -- but honestly it's just bar food, and the ceiling is probably a 4 on a really good day. I wouldn't get excited to head down there, and parking is a bit of a hassle too. Would recommend only if you're after very cheap eats in that area -- check them out for happy hour. But I would not return.

Photos
The Colorado Room
The Colorado Room - Rhine Pork Slider ($5.25) and Pork Banh-Mi Slider ($5.25)

Rhine Pork Slider ($5.25) and Pork Banh-Mi Slider ($5.25)

The Colorado Room

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Austin's American Grill - Yum!

Austin's American Grill

3.8(420 reviews)
0.5 mi
•$$

I decided to try this restaurant after seeing so many positive reviews, and now I completely…read moreunderstand why people love it. Every part of the experience was enjoyable from beginning to end. We were greeted warmly, seated quickly, and our server was incredibly friendly and helpful. The meal was fantastic. Everything tasted fresh and was prepared with care. Each dish had its own unique flavor, and nothing felt overly salty or greasy. The portions were just right, leaving us satisfied without feeling overly full. Even the drinks and dessert were excellent. The restaurant itself had a clean and inviting atmosphere. The tables were spotless, the seating was comfortable, and the overall vibe made it easy to relax and enjoy our evening. Even though it was busy, the staff stayed organized and attentive. This is exactly the kind of place you look forward to visiting again. The quality of the food, the professionalism of the staff, and the comfortable setting all came together to create an excellent dining experience. Highly recommended.

This should have been a five star review. It was a busy lunch period but we got seated immediately…read moreoutside. Service was great! Drinks right away and our walleye meals were served promptly. . Food was hot and delicious. The server checked on us twice while we were enjoying our meal. She brought us our check and I gave her a $100. bill for a $55.00 check. I asked her to bring me $30 back. She stopped by once and told us the manager was getting us change. Okay, The three star review was given as it took 15 min to give us $30 in change.

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Austin's American Grill - Rotisserie chicken

Rotisserie chicken

Austin's American Grill - Skillet corn bread

Skillet corn bread

Austin's American Grill - Bees knees on the patio

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Bees knees on the patio

The Regional - Regional Salad: Greens, almonds, pickled shallot, parmesan

The Regional

4.3(250 reviews)
0.5 mi
•$$

Dining with 17 people is never an easy feat, but The Regional was able to accommodate us. After…read morespeaking with one of the managers, we secured a reservation for that same evening. A little preparation on our end helped ensure everything went smoothly. Since The Regional is a farm-to-table restaurant, many items need to be prepared or prepped in advance, so I was grateful to collect everyone's orders earlier in the day. That gave the kitchen time to prepare and made it easier to get everything cooking once we arrived. We were seated off to the side of the bar in a small private area. The restaurant was busy, but not overwhelmingly so. Once we were settled, our server came over, introduced himself, and took our drink and food orders, making sure to associate each dish with the correct diner. After everything was entered, our drinks and food arrived surprisingly quickly. All of the food and drinks were good, but the service was even better. A big thank-you to the manager and our server for accommodating our team and helping make such a large dinner feel seamless.

This is not the usual review. Recently, I dined at the…read moreRegional, and had an unexpected mishap. But first.... the staff is exceptional. Our server was Lillian who is not only pleasant but well versed in the menu - offering suggestions and explanation on dishes or pairings. The atmosphere is homey with vintage style chairs, and the tables are set close but the room doesn't feel cramped We loved the Regional salad and the lamb merguez meatballs. As my main dish, I ordered the Halibut ceviche which is prepared with avocado, a detail that I overlooked and unfortunately I'm allergic to avocados. When the dish was placed in front of me, I was surprised and quickly signaled Lillian. She was concerned that I may have tasted the dish and offered medical attention (Benadryl) and promptly removed the dish. She encouraged me to order another main dish, but I opted for another lamb merguez meatballs which is served with warm bread. At the end of dinner, I was surprised that the halibut ceviche was taken off my bill - unexpected but appreciative gesture. 5 Stars - Hallmark of customer service at the Regional!

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The Regional - Booth with plants: Banquette seating, quieter side of the room

Booth with plants: Banquette seating, quieter side of the room

The Regional - Fiesta Hash

Fiesta Hash

The Regional - Iced coffee

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Iced coffee

Choice City - Tandoori Turkey Melt ($16) with side of citrus broccolini - requested no mayo, less cheese

Choice City

4.2(534 reviews)
0.4 mi
•$$$

This modern American venue was a gem of a find in Old Town. Moody retro modern vibe with a…read moreluxurious bistro feel. Our server was exceptiinal at his craft, offering polite recommendations and checking in at jist the right times to ensure we were taken care of. We had drinks and an appetizer and everything was deliciously elevated, definitely a cut above! Spice Theory: Blanco Tequila, Hatch Green Chili Cordial, Cacao Bitters, Agave, Lime, Tajin Ginger Lychee Martini: Haike Lychee Vodka , Ginger Cognac, Lemon Grilled Brussel Sprouts with Grilled Shaved Prosciutto on a bed of Yogurt Bechamel A visit well done. Kudos Choice City.

These are fake reviews !!…read more Yelp needs to crack down on fake reviews or their business model breaks down. No way are their so many five star reviews after the sale of the Fort Collins icon Choice City. This new rebranding of Choice City is way way over priced, totally destroyed the cool beer taps-Chimay Ale used to be on tap. It's all gone, chill vibe, great sandwiches, deli counter meats. All gone. In its place is a sterile Over priced mess of a restaurant that was decorated with on line IKEA furniture and a terrible Sysco Foods mass produced food product. Awful stay away and PS fire the BS level hospitality consultant that you hired for this. Sorry for the mean review but it is what it is.

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Choice City
Choice City - The Choice City ($19) - bacon, cheddar, balsamic onions, red pepper aioli

The Choice City ($19) - bacon, cheddar, balsamic onions, red pepper aioli

Choice City - Savory Mashed Potatoes ($7 - Old Town Spice Summer Savory, buttermilk, herb butter) + Citrus Broccolini ($7 - w/ citrus yogurt vinaigrette)

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Savory Mashed Potatoes ($7 - Old Town Spice Summer Savory, buttermilk, herb butter) + Citrus Broccolini ($7 - w/ citrus yogurt vinaigrette)

Union - Jefferson St. Cobb salad

Union

4.2(410 reviews)
0.7 mi
•$$

The Union Bar and Soda Fountain truly did not disappoint! From the beautiful atmosphere to the…read moreexceptional service, everything about our visit was wonderful. The outdoor patio was especially lovely, filled with flowers and thoughtfully arranged with plenty of space between tables. It created such a comfortable, relaxed environment without feeling crowded. The staff were incredibly friendly and knowledgeable, and their recommendations were excellent. We ordered a soda with added flavoring, and it was honestly one of the best sodas I've had in years--such a fun and delicious experience! We also brought our 1-year-old, and the family-friendly atmosphere made it an easy and enjoyable outing for all of us. He had a great time, too! If you're looking for a place with great food, wonderful service, and a charming, relaxing atmosphere, I highly recommend The Union Bar and Soda Fountain. We'll definitely be back!

I sadly have to update my review. Went for dinner tonight and the entire crew was just off its…read moregame. The hostess couldn't get our name right even after I spelled it three times. Once seated, it took a good 15 minutes for our server to come over and she seemed confused by one of our orders. Once we got that straight the drinks came out quickly but it took nearly an hour for the food and in that entire wait we had to request refills. I'm only removing one star because I've had two exceptional experiences. Am really disappointed by tonight's experience. ********* Really good food and really good service. On our last visit we had Derek as our server and he did a great job! The restaurant itself is clean, spacious, and comfortable. As a typical party of 5, I very much appreciate having a table that actually seats 5 and not a table for 4 with a chair pulled up. We will continue to return.

Photos
Union - Bar situated in center of the room adds for a great dining experience~

Bar situated in center of the room adds for a great dining experience~

Union - Grilled cheese with tomato bisque

Grilled cheese with tomato bisque

Union - Looks like a VERY cool place .... I wanna go

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Looks like a VERY cool place .... I wanna go

Avogadro's Number - tradamerican - Updated October 2026

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