This is from a BOOK I edited once called 101 Things to do with Meatballs, although I converted it to the CROCKPOT and adjusted it slightly. Super EASY and serves a big crowd!
Sweet and Spicy Meatballs
1 (12-ounce) jar chili sauce
1 can jellied cranberry sauce
1 to 2 tablespoons brown sugar
1 to 2 tablespoons lemon juice
50 frozen, precooked meatballs
In a bowl, combine all but the meatballs. Put the frozen meatballs in a large crockpot and pour the mixture over top. Cook on low heat for 5 to 6 hours and then serve over rice when done.
TIP: You can also serve this as an appetizer with toothpicks!