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!
Pizza cheese
Pizza cheese encompasses several varieties and types of cheeses and dairy products that are designed and manufactured for use specifically on pizza. These include processed and modified cheese such as mozzarella-like processed cheeses and mozzarella variants. The term can also refer to any type of cheese suitable for use on pizza. The most popular cheeses used in the preparation of pizza are mozzarella (accounting for about 30%), provolone, cheddar and Parmesan. Emmental, Romano and ricotta are often used as toppings, and processed pizza cheeses
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.