Slow Cooker Mongolian Beef is a convenient and easy way to enjoy this delicious dish. The beef is marinated and then cooked slowly in a crockpot, allowing the flavors to meld together and the meat to become tender and juicy. This method of cooking also allows for a hands-off approach, making it perfect for busy days when you want a flavorful meal without much effort. Serve the slow cooker Mongolian beef over rice or noodles for a satisfying and comforting meal.