You are olive oil. While not thought about by many you are the KEY to a good pizza. Without you all pizzas would be is just dry crusty cheese and marinara sadness. You are the quintessential pizza topping.
You're not a pizza topping. You're an everything pizza. So many layers and twists and turns when it comes to you. The pizza is delicious but bites back frequently. If not properly handled the pizza falls apart into a chaotic, doomed mess.
You are raw tomato slices. They're okay, but you piggy back off of the rest of the margherita if not done right. Unfortunately you have never been on a margherita pizza.
You are onions. Your taste has a distinct punch to it and your smell and texture are always welcome. Sliced into rings is best for consumption, of course, otherwise we would be overwhelmed by sulfur and choke.