Mix together mashed tofu, bell peppers, green onion, onion, garlic, shiitake mushrooms, green chili pepper, black pepper, soy sauce, salt, and a small amount of oyster sauce, then fill the cabbage leaves and roll them up.
Blanch the cabbage leaves in boiling water.
Mash the tofu and season with salt and black pepper.
Place the tofu mixture on the blanched cabbage leaves and roll them up.
Heat oil in a pan and grill the cabbage rolls.