Slow cooker French onion meatballs combine the rich, savory flavors of classic French onion soup with tender meatballs—and they only need 5 ingredients to make magic happen. This is a dinner ...

If the sauce is too juicy at the end, remove the meatballs and reduce to your liking in a pan or using the sauté function on your slow cooker. In a large bowl, mix the lamb with the red onion ...