*Freezing Tip: To prevent the meatballs from sticking together in one frozen clump, I first lay them out on a plate or baking sheet lined in parchment paper, and pop them in the freezer for at least 30 minutes. Once they’ve begun to freeze over, you can then transfer them into one baggie or container. The meatballs are good for a few months and simply needs 1 extra minute while baking, no thawing necessary.