The green beans must be fried first, because uncooked green beans are very toxic and can cause diarrhea, vomiting, etc. Therefore, if they are fried together, the green beans must be cooked first and then scooped up. Then fry the potatoes. Note that if you want the potatoes to be crispier, you can add a little vinegar, and the potatoes will not stick to the pan easily. Then add the cooked green beans and stir-fry them together when they are about eight ripe. Add seasonings and serve.

Note:

Green beans must be cooked before eating. It can range from diarrhea, vomiting and gastrointestinal discomfort to severe cases such as coma during eating.

The scientific name for the part where potatoes turn green is excessive solanine, which is a highly toxic substance to the human body. Do not keep it and should throw it away.