Cut the soft tofu into bite-sized pieces.
Finely chop the onion, bell pepper, and bacon.
Heat olive oil in a pan and sauté the onion, bell pepper, and bacon.
Add tomato sauce and simmer with the ingredients.
Put the sliced soft tofu in a gratin dish and pour the sauce over it.
Top with mozzarella cheese.
Bake in a 200°C oven for 10 minutes.
Finish with a sprinkle of parsley flakes.