Meatloaf freezes beautifully both raw and cooked. To freeze raw meatloaf: Form the meatloaf, wrap it tightly in plastic wrap, and place that in a freezer-safe bag or another airtight freezer-safe container. Store it in the freezer for 3-4 months, then defrost it in the refrigerator overnight completely, before following the cooking instructions. To freeze leftover meatloaf: Transfer cooled leftover meatloaf to a freezer-safe bag or container. Squeeze out as much air as possible, then close and freeze for 3-4 months.