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Fort Collins, CO

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Avogadro's Number

4.0 (213 reviews)
Open • 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
Moderate noise
Casual
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

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1 year ago

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11 months ago

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3 years ago

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10 months ago

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5 years ago

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3 years ago

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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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1 year ago

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3 years ago

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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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2 years ago

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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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Avogadro's Number - tradamerican - Updated October 2026

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