Wash and blanch rape for later use, and wash and chop onion for later use.

Wash and slice beef. Marinate with cornstarch, salad oil, egg white and cooking wine 10 minute.

Mix light soy sauce, tomato sauce, white sugar and cooking wine, and stir well for later use.

Cool the oil in the hot pot, add beef oil, and then take out the oil control.

Leave a little base oil in the pot, stir-fry onion, pour in tomato sauce, add beef, add seasoning such as salt and black pepper in turn, and finally mix a little starch with raw flour to thicken, and then serve.

Put the rape and rice away.

Sprinkle a little cooked sesame seeds after serving.