Question: do mashed potatoes reheat well?
Answer: 5 Ways to reheat and keep mashed potatoes warm: Reheat in the oven: keep foil on mashed potatoes at 375 for 30-40 minutes. Reheat in a slow cooker, add a little cream and butter to keep them moist. Place mashed potatoes in a zip lock bag, seal well and place carefully in a simmering pan of water.