steak dinner recipe

gredients: 1 lb (450g) flank steak or sirloin steak, thinly sliced 2 tablespoons soy sauce 2 tablespoons oyster sauce 1 tablespoon hoisin sauce 1 tablespoon cornstarch 2 tablespoons vegetable oil 1 bell pepper, thinly sliced 1 onion, thinly sliced 2-3 garlic cloves, minced 1-inch piece of ginger, minced