Absolutely! I like making a huge batch of meatballs, cooking them, and freezing them in an airtight container. Then when my family wants Swedish meatballs in sauce, I pull them out of the freezer, make the sauce, and add the meatballs to the pan. Simmer them all together until the meatballs are hot all the way through, and voila! Another option is to freeze the uncooked meatballs, then thaw them in the fridge when ready to make this recipe. Brown them as directed and follow the rest of the recipe instructions.