
Cut flank steak into 1/4 inch strips, cutting against the grain.
To make the marinade, mix soy sauce, oils, honey, ginger, chili flakes and salt and pepper in a large, flat bottomed dish.
Place beef strips into the marinade. Cover with plastic wrap and place in fridge for 1-2 hours to marinate.
Soak skewers for 10 minutes. Carefully thread each beef strip onto the skewers.
Grill for about 3-4 minutes per side on medium heat or until cooked to desired temperature. Sprinkle with sesame seeds and green onions before serving.