Spicy Beef with Green Peppers, also known as Qīngjiāo niúròu, is a popular Chinese dish that combines tender beef slices with crisp green peppers in a flavorful sauce. The beef is marinated in a mixture of soy sauce, ginger, garlic, and cornstarch, which helps to tenderize the meat and infuse it with delicious flavors. The green peppers are stir-fried until they are slightly charred and retain their crunchiness. The sauce is made with a combination of soy sauce, oyster sauce, and chili paste, giving the dish a spicy and savory taste. This dish is perfect for those who enjoy a bit of heat in their meals. Serve it over steamed rice for a satisfying and flavorful meal.