Leftover Crockpot Baby Potatoes can be stored for 3-4 days in the fridge, then rewarmed in the oven or in the microwave.  But they can also be frozen for longer term storage. It’s best to flash freeze cooked potatoes so they don’t all freeze together in a clump.  u003cbr/u003eu003cbr/u003eGrease a baking sheet and arrange potatoes and onions so they have as much room around them as possible. u003cbr/u003eu003cbr/u003eStick the pan in your freezer for 30 minutes, then transfer the potatoes and onions to an airtight container or bags. u003cbr/u003eu003cbr/u003eThey will last in your freezer for up to a year.  Reheat frozen Crockpot Potatoes in the oven directly from the freezer or the thawing process will turn the potatoes grey (although they will still be perfectly safe to eat).