K.C.
They freeze great! place them on cookie sheets to freeze and once frozen you can put them in zipper bags and thaw as many as you like at a time.
You can also rinse them and re sauce them with spaghetti sauce for meatball subs, or with mushroom soup for a swedish meatball. To rinse them, just add about 30 meatballs to a bag along with 1/4 cup of warm water. Close and shake and drain.