Steps
1. Preheat the oven to 425°F (220°C).
2. Spread the tomato sauce evenly over the pizza crust.
3. Sprinkle the shredded mozzarella cheese on top of the sauce.
4. Arrange the diced pineapple and sliced pepperoni over the cheese.
5. Bake in the preheated oven for 12-15 minutes or until the cheese is melted and bubbly.
6. Slice and serve hot.