1. Heat 1 tbsp vegetable oil (or sesame oil) in a frying-pan. Add the pork and fry for a few minutes. Add carrot, leek and brown mushrooms. Cook them until the meat is no longer pink. Finally add the crumbled tofu, breaking it into small pieces with your hand.
2. Add the ingredient A to season. Stir-fry for about 1min.
3. Pour the beaten egg over the tofu mixture. When the edges start to set, gently mix the egg, using a wood spatula.