01 -
Toss frozen meatballs into the slow cooker and set it to low.
02 -
Blend Worcestershire, chili sauce, cranberry sauce, and brown sugar in a bowl.
03 -
Spread the sauce across the meatballs evenly.
04 -
Put the lid on and let it simmer for 4 hours on low, giving it a stir now and then.
05 -
Switch to warm and top with chopped green onions, if desired.