Cut the tofu into bite-sized pieces.
Chop the vegetables such as onion, bell pepper, and tomato.
Heat olive oil in a pan and sauté the vegetables.
Add tomato sauce to the sautéed vegetables and simmer.
Place the tofu in an oven-safe dish, then top with the sauce and vegetables.
Add mozzarella cheese on top.
Bake in the oven at 180°C for 15 minutes.