Mongolian Beef is a flavorful dish that features tender slices of beef stir-fried with a savory and slightly sweet sauce. The beef is marinated in a mixture of soy sauce, hoisin sauce, and cornstarch, which helps to tenderize and flavor the meat. The dish is then quickly cooked with garlic, ginger, and green onions to create a delicious and satisfying meal. Mongolian Beef is a popular dish in Asian cuisine, particularly in Chinese and Mongolian cuisines.