The same love for pizza and beer that fueled three college students in 1974 transformed their lives as they expanded their business from one rundown building in Atlanta to 100 Mellow Mushroom restaurants across 15 states today. Each eatery owes its individual style to each location's being locally owned and operated, much like impressionist painters owed their individual style to their number of ears. In the kitchens, chefs assemble grilled and deli-style hoagies and bake calzones and pizzas in stone hearths using dough made with natural spring water. Though many of the restaurant's dishes have remained on the menu since its inception, the culinary crew frequently devises new, often gluten-free, dishes to keep senior-ranking pepperonis from becoming too powerful. Servers pair dishes with their location's own set of local brews, which are poured from 16 craft-beer taps.