Season beef with salt and pepper then sprinkle the cornstarch, sesame oli and 3 tablespoons of soy sauce. Gently massage the meat with the seasoning and marinate for at least 15 minutes.
Heat 2 tablespoons of olive oil on a large pan. Add the bell peppers, garlic, onions, and ginger. Saute for 3 minutes and transfer to a plate.
Add another 2 tablespoons on olive oil on the pan and sauté the beef for about 5 minutes then add the peppers back to the pan. Add water if it looks dry. Stir for 2 minutes. Season with salt and pepper. Sprinkle sesame seeds. Serve over rice. Yum!
Recipe by The Gluten Free at https://www.theglutenfree.com/gluten-free-pepper-steak-2/