Cut the tofu into bite-sized pieces.
Finely chop the onion, bell pepper, and broccoli.
Heat olive oil in a pan and stir-fry the vegetables.
Add tofu and stir-fry briefly.
Pour in tomato sauce and mix all ingredients well.
Transfer to an ovenproof dish and top with cheese.
Bake in a preheated oven at 180°C for 10 minutes.