Cut the tofu into bite-sized pieces.
Finely chop the onion and bell pepper.
Add olive oil to a pan and sauté the onion and bell pepper.
Stir in the tomato sauce.
Place the cut tofu in an oven-safe dish and pour the sautéed sauce over it.
Sprinkle pizza cheese on top.
Bake in the oven at 180℃ for 10 minutes.