Practice: Pull the leftover dumpling skin into noodles, cut spinach into slices, marinate beef with pepper powder, marinate with thirteen spices, cut tomatoes, Pleurotus eryngii, auricularia auricula and onion into pieces, fry half of the tomatoes in the pan, then add Pleurotus eryngii with auricularia auricula and pepper powder with soy sauce vinegar. Stir-fried with salt and boiled with water, boiled with beef, put the other half of tomatoes, put spinach and coriander.