Choose your own toppings on a 12, 14 or 16 inch St. Louis style pizza. 12 inch starts at $12, 14 inch starts at $14, and 16 inch starts at $16 plus 1.50 for each topping. Choose from the following toppings: Sausage, pepperoni, hamburger, bacon, chicken, anchovies, pineapple, spinach, and artichokes.onion, mushroom, green pepper, black olive, green olive, tomato, jalapeño, minced garlic, banana peppers.