To store: Keep chilled leftovers for up to three days in the refrigerator in an airtight container.
To freeze: Let the leftovers cool down a bit, then move them to a Ziplock bag, being sure to squeeze out any extra air, and freeze for up to two months. Overnight in the fridge will help it thaw.
To prevent it from drying out, reheat on the stovetop over medium-low heat while adding a splash of water and a lid.