Sliced beef tenderloin with light soy sauce, a little cooking wine, a little spiced powder, a little chicken essence, a little sugar and a proper amount of starch 10 minute; Sliced potatoes, sliced green peppers, diced carrots, diced onions. Heat the wok to 70% heat with peanut oil. Stir-fry the beef tenderloin until it is 70% cooked, and then take it out. Leave a little oil in the wok, add carrots and potatoes until they are 80% cooked, then add beef tenderloin, green pepper, onion, salt and pepper, stir-fry for a while, add appropriate seasonings such as broth, salt and chicken essence, and simmer on low heat until the soup is just right. Pour it on hot rice and it will be ok!