Preparation: Thinly slice the Beef into strips. Get a large bowl. Add Soy sauce, garlic, Hoisin sauce, Oyster sauce, sugar, and sesame seed oil. Slice up the Bell Peppers. Add the Beef. Mix the ingredients. Let it marinate for 60 minutes.
Preheat the Pan: Heat oil in a wok on high heat. Sauté the marinated Beef, along with the marinade sauce and the bell pepper, until the Beef has browned and the bell pepper has softened. The Beef should take five minutes on high heat. Thereafter, reduce the heat to low and cook for ten minutes. Once cooked, remove from the heat. Drizzle with sesame seed oil and sesame seeds. Garnish with chives.