Cut the tofu into appropriate-sized pieces.
Slice vegetables such as onion and bell pepper.
Heat olive oil in a pan and sauté the vegetables.
When the vegetables are cooked, add the tofu and stir-fry a little more.
Transfer the stir-fried ingredients to an oven-safe dish.
Top with tomato sauce and cheese.
Bake in a 200°C oven for 10-15 minutes.