CC-BY SA, Blondie's pepperoni pizza
Pizza consists of dough, tomatoe sauce, and cheese. The rest of the costumizations it can have are up to the consumer where toppings like pepperoni,sausage,ham,hot pepper,and pineapple which I don't know why you would do that, are all options among many. Some costumizations even add cheese inside the crust of the Pizza.
CC-BY SA, Hamburger