In a large skillet, sauté onions and peppers in oil; add garlic powder and black pepper. Transfer mixture to bowl and set aside. In the same skillet, pan-fry chicken, until cooked. Add onions and peppers. Place cheese on meat until slightly melted. Spoon cheese steak, onions, and peppers onto rolls and top with lettuce and tomatoes! served with some fries for a side dish. Enjoy