I made homemade tomato, onion, and cheese pizza this evening using a dough that was pre-made that I pressed out to make a Chicago-style pizza crust. First, I brushed both sides with olive oil and then added on the ingredients. These were chopped fresh tomato and diced onion, grated mozzarella and parmesan cheeses and Italian spices. I then cooked it for 15 minutes at 425F in our gas oven. We ate it piping hot and it was delicious, said my husband. It also looked very good.