Preheat oven – Preheat your oven to 375°F (190°C) or set your toaster oven.
Prepare the bread – Place thick slices of bread on a baking tray lined with parchment paper.
Spread sauce – Spread tomato sauce evenly over each slice of bread.
Add toppings – Arrange toppings such as sliced bell peppers, onions, corn, ham, or mushrooms on top.
Add cheese – Sprinkle a generous amount of shredded mozzarella or your favorite cheese over the toppings.
Bake – Bake for 10–15 minutes until the cheese is melted, bubbly, and lightly browned.
Garnish and serve – Optionally sprinkle dried oregano, basil, or chili flakes. Serve hot.