Mongolian Beef with Green Peppers is a classic Chinese dish that is sure to impress. Thinly sliced beef is marinated in a mixture of soy sauce, ginger, and garlic, and then stir-fried with green peppers and onions. The dish is known for its rich and savory flavors, with the beef becoming tender and flavorful from the marinade. Serve it with steamed rice for a delicious and hearty meal.