1. Cut the beef into strips, add a spoonful of black pepper sauce, half a spoon of salt, and a little soy sauce to marinate for flavor.
2. Put the pasta in boiling water and cook for ten minutes, then pick it up and set aside. , Wash all vegetables, slice mushrooms, shred onions, and green peppers.
3. Chop the garlic into garlic cloves, put a little more oil in the pot, sauté the garlic cloves when the oil is hot.
4. Pour in the vegetables and stir-fry until all the vegetables are soft.
5. Pour in the marinated beef tenderloin and stir-fry.
6. Add three spoons of black pepper sauce, one spoon of salt, one spoon of soy sauce, and half a bowl of water to stir and stir.
7. Pour in the pasta cooked before and stir well, continue to cook for about three minutes, the pasta absorbs the sauce and then comes out of the pot.
