Pizza is my absolute favorite food.
You mean the traditional Italian dish consisting of a yeasted flatbread typically topped with tomato sauce and cheese and baked in an oven? Yea it's my favorite too! 
But there are many ways to make pizza, aren't there? Deep-dish and probably others.
Yes, of course! It can be topped with additional vegetables, meats, and condiments, and can even be made without cheese.
Who makes pizza without cheese? That sounds crazy to me!
I agree! How can you say no to the most popular cheeses used in the preparation of pizza including mozzarella (accounting for about 30%), provolone, cheddar and Parmesan.
Personally I think meat is very important to pizza as well, though I know many people like vegetarian style.
Ah yes. It can be topped with meats, delicious meats! What
Yes, my favorite topping is pepperoni!
called pizzettas.
The term "pizza" was first recorded in the 10th century in a Latin manuscript from the Southern Italian town of Gaeta in Lazio, on the border with Campania. Modern pizza was invented in Naples, and the dish and its variants have since become popular in many countries. It has become one of the most popular foods in the world and a common fast food item in Europe and North America, available at pizzerias (restaurants specializing in pizza), restaurants offering Mediterranean cuisine, and via pizza delivery
List of pizza chains
This list of pizza chains includes notable pizzerias and pizza chains. Pizza is a dish of Neapolitan origin and cuisine, made with an oven-baked, flat, generally round bread that is often covered with tomatoes or a tomato-based sauce and mozzarella cheese. Other toppings are added according to region, culture, or personal preference.
A restaurant or takeout where pizzas are made and sold as main food is called a "pizzeria" () or simply “pizza parlor” in English.