Cut pork, tofu, and vegetables (such as onion, carrot, bell pepper) into bite-sized pieces.
Pat the tofu dry with a kitchen towel to remove excess moisture.
Heat cooking oil in a pan and stir-fry the pork.
When the meat is partially cooked, add vegetables and stir-fry together.
Add the tofu and gently stir-fry over low heat, mixing carefully.
Season with soy sauce, salt, and pepper to taste.
Once all the ingredients are cooked, transfer to a plate and serve.