Best Leftover Mashed Potatoes Recipe

Best Leftover Mash Recipe

So what do you do when you have leftover mashed potatoes? It’s a waste to throw them out, but who wants to reheat them and risk cold lumps or dried out mash? Let me come to your rescue with my best leftover mashed potatoes recipe ideas.

Through experimenting I’ve come up with a really good way to use up leftover mashed potato, and this recipe is easy to make and really good. It goes with everything! I made the original mashed potatoes using half Carisma and half sweet potato (my husband’s diabetic so we avoid regular mash) but as usual I made too much!

One of the Best Leftover Mashed Potatoes Recipe Ideas

I mashed a little sour cream into the leftovers, then spread them in a baking dish, topped with parmesan and panko breadcrumbs, and baked in the oven until hot, and until the panko was golden brown.

The flavor is really good. The potatoes are piping hot and the texture stays the same. It doesn’t taste like reheated leftovers. Trust me, this is one of the best leftover mashed potatoes recipe dishes you can make.

There are other things to do with leftover mashed potatoes, such as combining them with leftover vegetables, covering in flour and pan-frying in oil until crispy, but this crispy panko mashed potatoes dish is especially good.

The following best leftover mashed potatoes recipe doesn’t mention quantities because I don’t know how much leftover mash you have, but just use a little sour cream then add parmesan and panko to cover in a thin layer.

If the panko browns too fast, wrap some foil around the baking dish.

If it doesn’t brown enough give it a couple minutes under the broiler at the end.


Best Leftover Mashed Potatoes Recipe

Leftover mashed potatoes are livened up with sour cream, and topped with parmesan and panko. Baked in the oven until hot and crispy, this makes a wonderful side dish and it goes with anything.

  • Author: Victoria Haneveer
  • Cook Time: 20 mins
  • Total Time: 20 mins
  • Category: Side Dish


  • Leftover mashed potatoes
  • Sour cream
  • Panko (Japanese) breadcrumbs
  • Fresh parmesan flakes


  1. Preheat the oven to 400F (200C).
  2. Stir a little sour cream into the leftover mashed potatoes.
  3. Spread them into an ovenproof baking dish.
  4. Top evenly with parmesan flakes.
  5. Now sprinkle over the panko breadcrumbs.
  6. Bake for 20 minutes, or until piping hot throughout and golden brown on top.