Cut the tofu into bite-sized pieces.
Finely chop the onion and bell pepper.
Add olive oil to a pan and sauté the vegetables.
Add the seasonings (tomato sauce, salt, pepper) and mix.
Place the sautéed ingredients in an oven-safe dish and layer the tofu on top.
Sprinkle cheese evenly over the top.
Bake in a 180°C oven for 15 minutes.