Pizza is a famous Italian food that originated in Naples, Italy, and has become so popular that it has become a globally accepted food item, although people in different countries and regions have slightly different tastes when it comes to eating this pie. Pizzas are usually made with a leavened round crust covered with tomato sauce, cheese and other toppings and baked in an oven, with the cheese usually being mozzarella, but also in the form of a mixture of several cheeses.