Description. This is a traditional Italian dish typically consisting of a flat base of leavened wheat-based dough topped with tomato, cheese, and other ingredients, baked at a high temperature, traditionally in a wood-fired oven. Pizza and its variants are among the most popular foods in the world. You can buy a pizza in variety of restaurants, including pizzerias (pizza specialty restaurants), Mediterranean restaurants, and as street food. There are many varieties of pizza, depending on the choice of toppings and crust. There are also several styles of pizza depending on their preparation method.