1. Remove the kidney beans and drain after washing.
2. Shred string beans with an oblique knife.
3. The beef rolls are taken out and thawed about 15 minutes in advance.
4. After the pot is heated, pour a tablespoon of salad oil; when the oil temperature rises, pour in the shredded string beans and stir fry; when the string beans are soft, add the soybean paste and stir fry for a good taste.
5. Pour a tablespoon of salad oil into the pot and heat again; when the oil temperature rises, add beef rolls and a small amount of purified water.
6. After the beef roll changes color, add black pepper sauce and stir fry until it tastes good.
7. The fried beef rolls are placed on a plate and the green beans are arranged in a circle.
