Cooking spray
Olive oil
1 pound pizza dough
1/4 cup pizza or marinara sauce
1 cup shredded mozzarella cheese
1/4 cup pizza toppings: sliced pepperoni, diced mushrooms, sliced olives, fresh basil (optional)
Arrange a rack in the middle of the oven and heat to 400°F. Coat the wells of a standard 12-well muffin tin with cooking spray. While the oven is heating, let the dough sit out at room temperature.
Divide the dough into 12 pieces. Rub your hands with olive oil, then press each piece of dough evenly into the bottom and sides of each well of the muffin tin. Top each piece of dough with 2 teaspoons of the cheese, 1 teaspoon of the sauce, and then 1 more teaspoon of the cheese. If using, add toppings to the pizzas.
Bake until the cheese is melted and the crust is browned, 12 to 15 minutes. Cool for about 3 minutes before removing from the pan and serving.