Cut the tofu into bite-sized pieces.
Chop the onion and bell pepper.
Heat olive oil in a pan and sauté the onion and bell pepper.
Add the tofu to the pan and stir-fry together.
Pour in the tomato sauce and mix well.
Top with cheese and bake in the oven (180°C, 10 minutes).
Sprinkle parsley on top to finish.