Stir-fried noodles, flour and water, knead into dough, cut into round bumps slightly larger than soybeans; Boil the water, pour in the pimples, and stir in one direction with a spatula; After pouring water, stir it every one or two minutes, boil it and cook it for five or six minutes until all the pimples surface, then take it out and put it in a cold water basin for later use; Shred or mince beef, wash and cut all kinds of vegetables; Put sesame oil in the pot, heat it to 60% with high fire, add shredded beef, stir-fry with oil, vinegar and salt for a while after half a minute, stir-fry with cooked pimples for about half a minute, and stir-fry with fresh vegetables for a while, and serve.