1. Prepare all ingredients.
2. Peel the potatoes and cut into shreds, soak them in water to remove the starch.
3. Cut all the ingredients well and set aside.
4. Heat the oil in the pan, put all the ingredients into the saute.
5. Then add the potato shreds to the stir fry.
6. Stir-fry and add salt, soy sauce and ketchup to the test.
