A, buy a piece of beef, clean and cut into slices, with egg whites and cornstarch mix well, put a little wine, put the casserole in the water on the stove, ready ginger, onion, pepper, garlic, buy some tofu skin, lettuce, tea tree mushrooms, after the water boils, the beef slices into the first, and so on about 5 minutes to put the spices into the, and then put the tofu skin, tea tree mushrooms, put the salt, a little raw grapefruit, almost ready to put the lettuce, a little monosodium glutamate, you can put a little red oil, and sesame oil. and sesame oil.