I bought the refridgerated pizza dough that comes in the cardboard tubes (like Pillsbury, but I used a different brand). Put foil on a pan and spray it (I didn't spray the first time I did this and the pizzas were difficult to get off). Take a handful of dough and shape into a flat circle. Add your ingredients and bake at the temp directed on the dough package directions. If you are putting any meat on the pizza make sure you cook it prior to putting it on the pizza.
I made 3 different types of pizza when I did this.
This first one is mozzarella cheese, ricotta cheese, avocado, peppers, onions, tomatoes, mushrooms, oregano, and basil