Easy black pepper beef with beef, black pepper and onion. This Chinese black pepper steak and beef takes 20 minutes to make and much better than takeout.
Marinate the beef with all the Marinade ingredients, about 15 minutes.
Heat 1 tablespoon of the oil in a wok or skillet over high heat. Stir-fry the beef until the beef is browned on the outside but still pink inside. Dish out and set aside.
Heat the remaining oil in a wok or skillet over high heat. Stir-fry the garlic and the ginger until aromatic, and then add the green bell pepper, red bell pepper, onion, and black pepper. Stir-fry until you smell the aroma from the ingredients in the wok.
Transfer the beef back into the wok or skillet. Stir-fry until the beef is cooked through and the center of the meat is no longer pink, about 1-2 minutes. Dish out and serve immediately with steamed rice.