If your Halloween celebration is a dinner party, they you should wear the Pizza Costume Adult The one-piece outfit features a triangular tunic with an image of a slice, complete with crust, sauce, cheese and pepperoni. This yummy food was first made in the 1880s in Italy. Tomatoes had been brought to Italy from the Americas about 200 years prior, but it wasn't until someone thought to put it on flatbread that it began to become popular. The oldest known pizza recipe was called the marinara and it featured garlic, olive oil and tomatoes on top of flatbread. The Margherita recipe came a little later on and that included cheese, basil and tomato sauce and is similar to what we consider to be pizza today. Pepperoni toppings were an American addition.