Rinse the ground pork, shallots, and mushrooms with salt, then drain. Chop the mushrooms and shallots. Cut the tofu into small cubes. Heat a pan and sauté the shallots until fragrant, then add the pork and stir until it changes color. Add the mushrooms and stir-fry together. Season with 1 tablespoon chili oil.

Add the tofu, then season with 1 tablespoon oyster sauce, 1 tablespoon soy sauce, and 2 tablespoons water. Lower the heat and let the tofu simmer until some of the liquid evaporates and the tofu absorbs the flavors. Turn off the heat, sprinkle with green onions and black pepper, and serve hot with rice.