Cooking:

1. Wash and chop scallion and ginger, wash and dice lean meat and green pepper, and wash and peel and dice yam.

2. Blanch the yam in boiling water for 1 minute.

3. Pour oil into the pot, add scallion and ginger powder, salt, sugar, rice wine and soy sauce into the pot and stir-fry for 1-2 minutes.

4. Put the diced meat in the pot and stir-fry for 5-6 minutes.

5. Add yam and green pepper in the pot and stir-fry for 3-4 minutes.

6. Mix corn starch with water, pour them into the pot, cook thick and then out of the pot to serve.