Beat the eggs into a large bowl, add appropriate amount of salt and water and stir to form an egg paste; Wash the onion and cut it into chopped green onion. Clean lean meat, cut it into powder, put it in a small bowl, add proper amount of raw powder and soy sauce, grab it evenly with your hands or chopsticks, and marinate for 5 minutes. Lean pork treated with raw flour and soy sauce is poured into a large bowl filled with egg paste and mixed with egg paste, and stirred evenly. Put the big bowl on the steaming rack, cover it and steam for about 8 minutes on medium heat. Sprinkle chopped green onion before serving.