Cut the beef into slices. Marinate with all the marinating seasonings for 15 minutes.
Blanch the vegetables | bring a large pot of water to a boiling and then add a small pinch of salt and 1 teaspoon of oil. Cook for 10-15 seconds until the vegetables are almost cooked. Do not kill the vegetable.
Add cooking oil in a large pan until the oil can evenly cover the bottom of the pan. spread the beef slices in. Let them stay for around 3-5 seconds and gently stir them several times until the color changes. Transfer the beef out immediately once the surface colors changes and leave around 1 tablespoon of the oil in. Save the extra oil for vegetable stir frying.
Fry garlic and sha cha sauce for around 30 seconds until aromatic. Add beef and mix well.
Transfer the beef slices to the serving plate with blanched vegetables.