1. Wash kidney beans and shred them for later use.
2. Slice the beef against the grain, marinate it with cornstarch, ginger shreds, soy sauce, and appropriate amount of water for a while.
3. Cut tomatoes into pieces and set aside.
4. Bring water to a boil on high heat, pour in kidney beans and cook until they are ripe and remove.
5. Drain the water and set aside.
6. Heat the oil in a pan until it is six mature, pour in corn oil, and quickly stir-fry the beef six mature over high heat.
7. Pour into the kidney beans and stir-fry for a few minutes.
8. Add the tomatoes and stir-fry for a minute.
9. Add a pinch of salt.
10. carry out.
11. Serve, complete, dinner today.
12. Figure two of the finished product.
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