Uses for Leftover Mashed Potatoes

Sometimes there are leftovers from a meal. Mashed potatoes can be used in a number of ways other than reheated and drowned in gravy. Never toss leftovers out because that is the same as throwing money into the garbage.

My Mom would simply reheat leftover mashed potatoes in a double boiler or flatten spoonfuls in a frying pan. She’d pour ketchup over the results. I knew there must be better ways to use leftover potatoes.

These are only a few of the many possibilities. There are hundreds available on the internet, although some are a bit strange. It seems you can make candy from mashed potatoes. I’m certain everyone has their favorite ways make new meals from leftover mashed potatoes.

Potato and Vegetable Patties

These are good for breakfast served with eggs and bacon.


  • 2 cups of leftover mashed potatoes
  • ¼ of a cup of all-purpose flour or enough to stiffen the mixture
  • ¼ of a large onion or bunch of green onions, sliced thin
  • ½  cup leftover corn or other vegetable (can be omitted)
  • 1 large egg, beaten
  • ½ teaspoon of salt (omit if the potatoes contain enough)
  • 1 clove minced garlic or garlic powder (can be omitted)
  • ½ teaspoon black pepper to taste


Put the mashed potatoes into a mixing bowl. Add the finely diced onion, the flour, the leftover vegetables, the egg and the seasonings. Mix well. If too stiff add a tablespoon or so of milk, if too soft add a tablespoon or so of additional flour. The mixture should be firm enough to form into round flat shapes about a half an inch thick. The patties can be floured or covered in cornmeal and flour before frying. Heat a few tablespoons of cooking oil, shortening or bacon fat in a frying pan. Fry the patties over medium heat until they are browned on both sides.

Meat and Vegetable Potato Topped Casserole

Leftover stew or other meat and vegetable combinations can be covered with a layer of leftover mashed potatoes and baked. This dish will help clean out the refrigerator. There are hundreds of different recipes of this on the internet.


  • 1 cup of leftover meat, chopped
  • 2 cups leftover vegetables
  • ½ small onion, chopped
  • 1 cup or more of leftover gravy or water and bullion
  • 2 cups of leftover mashed potatoes
  • 1 to 2 eggs


Heat the oven to 350 degrees F. Butter a casserole or baking dish.

The amounts are estimates. Use what you have on hand and add some frozen or canned vegetables if you need to. Chop the meat, if it needs to be, into one inch pieces. Dice the onion. Mix the meat, onion and vegetables together in a large sauce pan. Add the gravy or enough water and bullion and heat until bubbly. Add salt and pepper or other seasonings to taste. Pour the hot meat and vegetable mixture into the baking dish. Mix the leftover mashed potatoes in a bowl with the egg or eggs. The mixture should be stiff. Cover the hot ingredients in the baking dish with the potato mixture or pipe out in fancy designs. Bake until the potatoes are browned.

Reverse Meat Pie

This sounds weird but it tastes good.


  • Leftover mashed potatoes
  • Leftover meat
  • Leftover vegetables
  • Part of or a full can of tomato soup
  • Worcestershire sauce
  • Garlic, minced or powder
  • Salt and black pepper to taste


Heat the oven to 350 degrees F.

Press the leftover mashed potatoes into the bottom of a pie pan and up the sides. Put in the meat and vegetables. Mix the tomato soup with seasonings, such as Worcestershire sauce, salt and pepper and a bit of water to thin slightly. Pour the soup mixture over the top of the other ingredients. Bake for about 30 minutes.


Use as a filler for tuna and salmon patties. Mix the fish and potatoes with onion, seasonings, and eggs, fom into patties and fry or bake.

Use in bread and roll recipes. Use in place of part of the flour called for or look up bread recipes that use potatoes.

Add to homemade soups to thicken.

Add to the filling of fried or baked hand pies (perogies) along with meat, vegetables,  cheese and sour cream or gravy.

Use to make gnocchi or potato dumplings.


About dwittopinions

A great grandmother living in the middle of the United States. My interests include art, needlework, reading, history, politics, and cooking.
This entry was posted in Bread, Breakfast, Dinner, Food, Lunch, Main Dishes, Recipes and tagged , , , , , , , , , . Bookmark the permalink.

6 Responses to Uses for Leftover Mashed Potatoes

  1. Food Stories says:

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  2. Thank you! That is indeed an honor and I greatly appreciate the nomination.

  3. Micha says:

    I love the potato and vegetable patties idea!

  4. I use them for everything as well. Shepherd’s pie, fried with eggs. Love them.

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