Crock Pot French Onion Meatballs
Layer sliced onions and fully cooked frozen beef meatballs in a 6-quart slow cooker.Add seasoned beef broth and cook on HIGH for 2½–3½ hours or LOW for 5–6 hours, until heated through.Thicken with cornstarch slurry, melt Gruyère-style cheese on top, and serve over rice or mashed potatoes.