What's a Petro? It's nothing short of layered amazingness! First, crunchy Frito corn chips followed by our special recipe DELICIOUS chili. Pile on the grated cheeses, diced fresh tomatoes {never canned}, REAL sour cream, a sprinkling of green onions, black olives and jalapeños. Every bit of it made to order. Available in three sizes, Vegetarian or Original Chili {which is made with ground...