Beef and Green Pepper Stir-Fry with Garlic Sauce is a flavorful and satisfying dish that combines tender beef slices with crisp green peppers in a fragrant garlic sauce. The beef is marinated in a mixture of soy sauce, oyster sauce, and cornstarch, which helps to tenderize the meat and infuse it with savory flavors. The green peppers are stir-fried until they are slightly charred and retain their crunchiness. The garlic sauce is made with minced garlic, soy sauce, chicken broth, and a touch of sugar, creating a deliciously aromatic and savory sauce that coats the beef and peppers. This dish is quick and easy to make, making it perfect for a busy weeknight dinner.