Here are some tips for storing prepared meals and keeping them fresh: 1) Let the dish cool completely before storing it. Then transfer it to an airtight container and put it in the fridge or freezer immediately after it has cooled.  2) Always pack in an airtight freezer safe container or ziploc bag. 3) For baked goods, separate each one with a layer of parchment paper before refrigerating or freezing and storing.