Avogadro's Number
Fort Collins, CO
605 S Mason St, Fort Collins, CO 80524, USA71 itemsUpdated March 23, 2026
Structured menu data
Bottles and Cans
Kombucha
$4.95Orange Juice
$3.25Perrier
$4.95San Pellegrino
$3.25Blood Orange | Limonata | Orange
Breakfast
Avocado Benedict
$13.25Fried avocado topped with 2 eggs any style and hollandaise over spinach. Served with potatoes.
Big Benedict
$15.952 eggs any style on a toasted English muffin with avocado, ham, spinach and tomatoes smothered in hollandaise. Served with potatoes.
Breakfast Burrito
$13.953 scrambled eggs, onion, bell pepper, potatoes, mozzarella, and cheddar in a flour tortilla smothered with veggie chili or pork green chili.
Eggs Benedict
$12.952 eggs any style on an English muffin with ham, smothered in hollandaise. Served with potatoes.
Greg'l
$5.95Toasted plain or everything bagel with 2 scrambled eggs and jack cheese.
House Breakfast
$6.952 eggs any style, potatoes, toast.
Omelette
$8.553 egg omelette with jack cheese. Served with potatoes and toast. Add on your favorite fillings $8.95
Veggie Benedict
$12.952 eggs any style on an English muffin with avocado, spinach, and tomatoes smothered in hollandaise. Served with potatoes.
Breakfast Add-Ons
Avocado
$2.95Bacon
$2.95Bell Pepper
$0.75Black Olive
$0.75Ham
$2.95Mushroom
$0.75Sausage
$2.95Sauteed Onion
$0.75Tempeh
$2.95Burgers
1/2 lb Beef Burger
$13.65Charbroiled beef patty on toasted brioche bun with jack cheese, lettuce, tomato, onion, pickle, and house dressing. Add Bacon or Avocado +$2.95
Beyond Burger
$13.25Seared Beyond burger on a toasted brioche bun with jack cheese, lettuce, tomato, onion, pickle, and house dressing. Add Bacon or Avocado +$2.95
Chicken Tenders
$13.25Golden-fried chicken tenders served with cole slaw, choice of BBQ, house dressing, bleu cheese dressing, Cajun remoulade, or honey mustard.
Impossible Burger
$13.95Seared Impossible Burger on a toasted brioche bun with jack cheese, lettuce, tomato, onion, pickle, and house dressing. Add Bacon or Avocado +$2.95
Tempeh Burger
$11.95Golden-fried organic house-made tempeh on a toasted brioche bun with jack cheese, micro greens, tomato, onion, pickle, and house dressing. Add Bacon or Avocado +$2.95
Classics
Avo's Club
$13.95Ham, turkey, bacon, avocado, lettuce, tomato, onion, and garlic basil aioli on toasted sourdough bread.
Creamation
$13.95Cream cheese, avocado, black olive, lettuce, tomato, onion, and house dressing on a toasted baguette.
Gyro
$13.95Choice of beef and lamb, chicken, or falafel on a warm pita with hummus, feta, tzatziki sauce, cucumber, tomato, onion, and banana pepper. Served with choice of side.
Italian
$13.95Ham, salami, mozzarella, lettuce, tomato, onion, banana pepper, red wine vinaigrette, and mayo on a toasted baguette.
Joe's
$13.95Turkey, bacon, avocado, cream cheese, lettuce, tomato, onion, and house dressing on a toasted baguette.
Lizzies
$13.95Grilled marinated mushroom, banana pepper, black olive, and melted Swiss cheese on a toasted baguette with avocado, tomato, and house dressing.
Mogul
$13.95Grilled turkey, mushroom, onion, banana pepper, and melted Swiss cheese on a toasted baguette with house dressing, honey mustard, and tomato.
Parmesan Sub
$13.95Hand breaded chicken tenders or tempeh on a toasted baguette with melted mozzarella, parmesan, and house made marinara. With choice of side.
Philly Cheesesteak
$14.958oz sliced sirloin steak, grilled onions, American cheese and mayo on a toasted Amaroso Roll.
Reuben
$13.95Choice of corned beef, turkey, or tempeh with house-made sauerkraut, Swiss cheese, and Cajun remoulade dressing on toasted rye bread. Add Grilled Mushroom, Onion, and Banana Peppers +$2.25
Veggie Steak Sub
$13.95Grilled tempeh, mushroom, onion, bell pepper, mozzarella and cheddar cheese on a toasted baguette with tomato and house dressing.
Cold Beverages
Fountain Drinks
Iced Tea
Lemonade
Hot Beverages
Bottomless Coffee (In House)
$2.50Hot Chocolate
$3.95Hot Tea
$2.50Kids and Light Adult Menu
1/4 lb. Burger
$3.75With baby carrots or potato chips.
1/4lb. Cheese Burger
$4.75With baby carrots or potato chips.
B.L.T. with Mayo
$7.25With baby carrots or potato chips.
Grilled Cheese
$4.75With baby carrots or potato chips.
P.B. & J.
$4.00With baby carrots or potato chips.
Tempeh and Cheese
$4.75With baby carrots or potato chips.
Salads
Avo's Salad
$9.95Mixed greens topped with tomatoes, carrots, cucumbers, croutons, mozzarella, and cheddar. Add Turkey, Ham, Avocado, Tempeh, Bacon, or Falafel +$2.95. Add Tempeh or Chicken with Sauteed Mushroom, Onion, Black Olive, and Bell Pepper +$4.95
Caesar Salad
$9.95Green leaf lettuce mixed with caesar dressing topped with tomatoes and croutons. Add Tempeh or Chicken +$2.95
Falafel Salad
$12.95Falafel over green leaf lettuce, tomato, onion, cucumber, banana pepper, feta, croutons, and dolmas. May Add Bacon or Avocado +$2.95
Shakes
Banana
$5.45Chai
$5.45Chocolate
$5.45Dream Bar
$5.45Espresso
$5.45Mexican Mocha
$5.45Mocha
$5.45Nitty Gritty
$5.45Peanut Butter
$5.45True Grit
$5.45Vanilla
$5.45Snacks
Fries
Hummus Plate
$8.95House made hummus, pita, baby carrots.
Jalapeno Poppers
Golden-fried, hand-breaded jalapeños stuffed with cream cheese and jack cheese. Served with house dressing
Mozzarella Sticks
Golden-fried, hand-breaded mozzarella. Served with marinara
Onion Rings
Golden-fried, hand-breaded onion rings. Served with house dressing
Side Salad
$3.95Mixed greens, carrot, cucumber, tomato, jack cheese, and crouton with choice of dressing.
Soup and Chili
Choice of pork green chili, veggie red chili, or soup of the day