Yes, Of course you can freeze these Meatloaf Muffins! Follow the recipe as specified and let the mini meatloaves cool. Add to a freezer bag or airtight container and freeze for up to 6 months. To thaw, place in the fridge overnight and you can either reheat in the microwave (at about a minute per muffin) or all at once in the oven for about 20 minutes. (Use a thermometer to make sure the muffins are fully warm in the center.)