1. Cut the onion into chopped green onion, heat it in an oil pan, stir-fry the chopped green onion until fragrant, and then add two bowls of clear water to boil it;

2. Wash tomatoes, blanch with boiling water, peel and dice, dice potatoes, slice beef, then pour into a pot and continue to cook over medium heat;

3. Open the lid and cook for five minutes, add salt, black pepper, chicken powder, tomato sauce and drizzle with sesame oil.