Fat Sully’s (City Park) Pizza 3237 E. Colfax Ave.Denver, CO 80206303-377-7900fatsullys.com Meals: Dinner, Lunch Hours: Cost: $ Reservations: Not accepted Tucked inside the Atomic Cowboy, the spot’s menu is small (just a few pizza varieties, including a gluten-free version), but it’s cheap and servings are enormous.