If you call it “pizza pie,” that’s redundant. “Pizza” means pie in Italian. It comes from “picea,” meaning the blackening of a crust by an oven fire.
The food was created by poor cooks who had only flour, olive oil and cheese. The American pizza is based on this Margherita, which adds tomato and basil. American pizza toppings have climbed over the years, but the Italians have remained steadfast. Order a pizza there and you will be handed a pie with a blackened crust and only cheese, tomatoes and fresh basil.