Avogadro's Number

Add Review

Call

Website

Menu

Location and Contact

See Map - Get Directions

605 S Mason St
Fort Collins, CO 80524

Phone: (970) 493-5555

Website

Neighborhood: Fort Collins

Update Listing

Popular Menu Items

• Burger $14.56
• Charbroiled beef patty on a toasted brioche bun with jack cheese, lettuce, tomato, onion, and pickle.
• Mozzarella Sticks $6.43
• Golden fried, hand breaded mozzarella. Served with homemade marinara
• Avo's Famous Tempeh Burger $13.84
• Golden fried, organic house-made tempeh on a toasted wheat kaiser bun with mozzarella, cheddar; lettuce, tomato, onion, pickle and house dressing
• Avo's Club $16.82
• Ham, turkey, bacon, avocado, lettuce, tomato, onion and garlic basil aioli on toasted sourdough bread
• Veggie Steak $16.18
• Marinated tempeh, mushrooms, onions, bell peppers, mozzarella and cheddar cheese on a toasted baguette with tomato and house dressing

Hours

Update Hours

View the Menu

Update Details

Restaurant Description

Add a description here.

Restaurant Photos

View Menu

Write a Review for Avogadro's Number

Share Your
Experience!

Select a Rating Select a Rating!

Reviews for Avogadro's Number

Write a Review

  3.8 stars - Based on 38 reviews

#68 out of 669 restaurants in Fort Collins

#10 of 51 American in Fort Collins

5 star				6 reviews	16%
4 star				20 reviews	53%
3 star				11 reviews	29%
2 star				1 review	3%
1 star				0 reviews	0%

Top Reviews of Avogadro's Number

07/13/2025 - Holly J.
There are plenty of great vegan options here, though I was surprised there are no vegan sandwich toppings and found the vegan chili a bit bland. The friendly staff, casual vibe, and live music make it a fun spot to enjoy tasty food like the tempeh burger or Friday fish and chips, especially on the spacious outdoor patio.

10/02/2024 - Jay R.
Avos offers a variety of vegan options, but unfortunately no vegan toppings are available for sandwiches. The vegan chili may be lacking in flavor, but the friendly staff and ongoing improvements in the environment make it a pleasant dining experience. The casual atmosphere, live music, and diverse menu make Avos a great choice for a fun and satisfying meal in Fort Collins.

04/22/2024 - Murray P.
Always great!