This Mongolian Beef Stir-Fry recipe is a quick and easy weeknight meal. The beef is thinly sliced using a food processor, then stir-fried with broccoli, carrots, and snap peas. The sauce is a combination of soy sauce, hoisin sauce, and brown sugar, giving the dish a perfect balance of savory and sweet flavors. Serve it over steamed rice or noodles for a complete and satisfying meal.