1. Soak mixed mushrooms in water. Cut cabbage, ginger, ham and beef in strips. Cut carrot in half then slice it. Shred green onion. Marinate beef with marinade. Beat the egg.
2. Boil 1L of chicken broth. Put in ham, mushrooms and mushroom water, carrot, ginger and cabbage. Cover the lid and cook in mid-low heat for 20 minutes.
3. Put in beef, pepper, sesame oil and salt. Thicken the soup with cornstarch water. Put in egg and stir as egg drops. Put in green onion.