You could spend hours over the stove simmering chunks of beef in a broth flavored with onions and mushrooms, or you could follow this recipe and let your slow cooker do all the work. Either way, the result is tender, hearty, perfectly seasoned beef you can serve with potatoes and some green vegetables, spoon over rice or noodles, or pile onto crusty rolls. The only difference is this slow cooker recipe only needs five minutes of your attention before your slow cooker takes over.