Leftover Mashed Potato Recipes

Transform leftover mashed potatoes into delicious recipes: crispy pancakes, cheesy balls, creamy soup, loaded casserole & sweet fritters.

Leftover Mashed Potato Recipes
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There’s something magical about transforming yesterday’s side dish into today’s main attraction.

If you’ve ever found yourself staring at a container of leftover mashed potatoes in your fridge, wondering what to do with them, you’re in the right place.

These five creative recipes will breathe new life into those spuds and have your family asking for seconds.

Leftover mashed potatoes are incredibly versatile. They’ve already been cooked, seasoned, and whipped to perfection, which means they’re the ideal starting point for quick, delicious meals.

From crispy pancakes to creamy soups, these recipes prove that leftovers can be just as exciting as the original dish.

Leftover Mashed Potato Recipes

1. Mashed Potato Pancakes

Golden, crispy on the outside and fluffy on the inside, mashed potato pancakes are the perfect way to use up those leftovers.

Mashed Potato Pancakes

They make an excellent breakfast, lunch, or dinner option that the whole family will love.

Ingredients

Kitchen Equipment Needed

Step-by-Step Instructions

Start by placing your leftover mashed potatoes in a large mixing bowl. If they’ve been refrigerated, let them sit at room temperature for about 10 minutes to take the chill off. This makes them easier to work with.

Add the beaten egg to the mashed potatoes and stir thoroughly with a wooden spoon or fork until the egg is completely incorporated. The egg acts as a binder that will help hold your pancakes together during cooking.

Sprinkle the flour over the potato mixture. The flour adds structure and helps create that crispy exterior we’re looking for. Mix it in gently but thoroughly, making sure there are no dry pockets of flour remaining.

Fold in the shredded cheddar cheese and chopped green onions. The cheese adds richness and helps bind the mixture, while the green onions provide a fresh, mild onion flavor that complements the potatoes beautifully.

Season the mixture with garlic powder, salt, and black pepper. Taste a small amount and adjust the seasonings if needed. Keep in mind that your original mashed potatoes likely already contain some salt and butter, so start conservatively.

Heat the vegetable oil in your non-stick skillet over medium heat. To test if the oil is ready, drop a tiny bit of the potato mixture into the pan. If it sizzles immediately, you’re good to go.

Using your hands or a large spoon, scoop about ¼ cup of the potato mixture and form it into a patty about ½ inch thick.

Place it gently in the hot oil. Repeat this process, being careful not to overcrowd the pan. Leave at least an inch of space between each pancake to ensure even cooking.

Cook the pancakes for 3 to 4 minutes on the first side without moving them. This allows a golden-brown crust to form. You’ll know they’re ready to flip when the edges start to look set and golden.

Carefully flip each pancake using your spatula. Cook for another 3 to 4 minutes on the second side until both sides are crispy and golden brown.

Transfer the cooked pancakes to a plate lined with paper towels to drain any excess oil. If you’re cooking in batches, you can keep the finished pancakes warm in a 200°F oven while you cook the remaining ones.

Serve hot with a dollop of sour cream on top, or try them with applesauce, ketchup, or your favorite dipping sauce.

Tips

If your mashed potatoes are very creamy or wet, add an extra tablespoon or two of flour to help the mixture hold together better. The consistency should be thick enough to form patties that don’t fall apart.

For extra flavor, try adding crumbled bacon, diced ham, or cooked sausage to the mixture. These additions make the pancakes hearty enough to serve as a complete meal.

Make sure your oil is at the right temperature. If it’s too hot, the outside will burn before the inside heats through. If it’s not hot enough, the pancakes will absorb too much oil and become greasy.

These pancakes freeze beautifully. Layer them between sheets of parchment paper in an airtight container and freeze for up to 3 months. Reheat them in a skillet or oven for best results.

See Also: Hash Browns Recipe

2. Cheesy Mashed Potato Balls

Cheesy Mashed Potato Balls Recipe

These irresistible cheesy mashed potato balls are crispy on the outside, creamy on the inside, and packed with melted cheese.

They’re perfect as an appetizer, snack, or side dish that will disappear in minutes.

Ingredients

Kitchen Equipment Needed

Step-by-Step Instructions

Place your chilled mashed potatoes in a large mixing bowl. Cold mashed potatoes are easier to shape into balls, so if yours are at room temperature, pop them in the fridge for 30 minutes before starting.

Add the shredded mozzarella, grated Parmesan, chopped parsley, Italian seasoning, salt, and black pepper to the bowl. Mix everything together thoroughly using your hands or a sturdy spoon. The mixture should be well combined with the cheese evenly distributed throughout.

Crack one egg into a small bowl and beat it well with a fork. Set this aside for now. This will be your egg wash.

Pour the breadcrumbs into a shallow dish and set it near your work area. This will make the coating process more efficient.

Line a baking sheet with parchment paper. This is where you’ll place your formed balls before frying.

Using a cookie scoop or your hands, take about 2 tablespoons of the potato mixture and roll it between your palms to form a smooth ball about 1½ inches in diameter. Place it on the prepared baking sheet. Continue this process until all the mixture has been formed into balls.

Once all the balls are formed, place the baking sheet in the refrigerator for at least 30 minutes. This chilling step is crucial because it helps the balls hold their shape during frying.

When you’re ready to fry, heat about 3 inches of vegetable oil in your deep fryer or large pot to 350°F. Use a cooking thermometer to ensure accurate temperature.

Remove the potato balls from the refrigerator. Take each ball and dip it into the beaten egg, making sure it’s completely coated. Let any excess egg drip off.

Immediately roll the egg-coated ball in the breadcrumbs, pressing gently to ensure the crumbs adhere well. Place the coated ball back on the baking sheet. Repeat with all the balls.

Carefully lower 4 to 5 balls into the hot oil using a slotted spoon. Don’t overcrowd the pot, as this will lower the oil temperature and result in greasy balls.

Fry for 3 to 4 minutes, turning occasionally with the slotted spoon, until the balls are deep golden brown all over.

Remove the fried balls with the slotted spoon and drain them on a plate lined with paper towels. Let them rest for a minute or two before serving, as the cheese inside will be extremely hot.

Serve warm with marinara sauce, ranch dressing, or your favorite dipping sauce.

Tips

For an extra surprise, press a small cube of mozzarella into the center of each ball before coating. This creates an amazing cheese pull effect when you bite into them.

If you don’t want to deep fry, you can bake these at 400°F for 20 to 25 minutes, turning them halfway through. Spray them lightly with cooking spray before baking for a crispy exterior.

Make sure your oil temperature stays consistent. If it drops too low, the balls will absorb oil and become soggy. If it’s too hot, they’ll brown too quickly on the outside while remaining cold inside.

These can be prepared ahead and frozen before frying. Freeze the coated balls on a baking sheet, then transfer them to a freezer bag. Fry from frozen, adding an extra minute or two to the cooking time.

See Also: Cheese Ball Recipe

3. Mashed Potato Soup

Best Mashed Potato Soup Recipe

This creamy, comforting mashed potato soup transforms your leftovers into a restaurant-quality meal.

It’s rich, warming, and perfect for those chilly evenings when you want something hearty and satisfying.

Ingredients

Kitchen Equipment Needed

Step-by-Step Instructions

Start by cooking the bacon in your large soup pot over medium heat. Stir it occasionally as it cooks, breaking it into smaller pieces with your wooden spoon.

Cook for about 6 to 8 minutes until the bacon is crispy and has rendered most of its fat.

Remove the crispy bacon pieces with a slotted spoon and set them aside on a paper towel-lined plate. Leave about 2 tablespoons of bacon fat in the pot. If there’s more than that, pour off the excess.

Add the butter to the bacon fat and let it melt over medium heat. Once melted, add the diced onion to the pot. Cook for 4 to 5 minutes, stirring frequently, until the onion becomes soft and translucent.

Add the minced garlic to the pot and cook for another minute, stirring constantly. You’ll know it’s ready when you can smell the fragrant garlic aroma. Be careful not to let it burn, as burnt garlic tastes bitter.

Pour the chicken broth into the pot, stirring to combine with the onion and garlic mixture. Increase the heat to medium-high and bring the mixture to a gentle simmer.

Add your leftover mashed potatoes to the pot. Use your whisk to break up the mashed potatoes and incorporate them into the broth.

Whisk continuously for 2 to 3 minutes until the potatoes are completely dissolved and the soup is smooth.

Reduce the heat to medium-low and stir in the milk and heavy cream. Add the dried thyme, salt, and black pepper. Stir everything together well.

Let the soup simmer gently for 10 to 15 minutes, stirring occasionally. The soup will thicken slightly as it cooks.

If it becomes too thick for your liking, add a little more broth or milk to reach your desired consistency.

Taste the soup and adjust the seasonings as needed. Remember that you’ll be adding cheese, which will add saltiness, so be conservative with additional salt at this point.

Remove the pot from the heat and stir in the shredded cheddar cheese. Stir continuously until the cheese is completely melted and incorporated into the soup.

If you prefer an ultra-smooth soup, use an immersion blender to blend it until completely smooth. This step is optional but creates a restaurant-quality texture.

Ladle the hot soup into bowls. Top each serving with some of the reserved crispy bacon, sliced green onions, a dollop of sour cream, and an extra sprinkle of shredded cheese if desired.

Tips

This soup tastes even better the next day after the flavors have had time to meld together. Store it in an airtight container in the refrigerator for up to 4 days.

For a lighter version, use low-fat milk instead of whole milk and skip the heavy cream. You can also use turkey bacon instead of regular bacon.

If your leftover mashed potatoes contain chunks, you can either leave them for a more rustic texture or use the immersion blender to smooth everything out.

Add variety by stirring in other ingredients like corn, diced ham, roasted red peppers, or sautéed mushrooms during the last few minutes of cooking.

For a vegetarian version, use vegetable broth and skip the bacon. Add some smoked paprika for depth of flavor.

See Also: Potato Leek Soup Recipe

Leftover Mashed Potato Recipes

4. Mashed Potato Casserole

This loaded mashed potato casserole is comfort food at its finest. It’s creamy, cheesy, and topped with crispy goodness.

Perfect for potlucks, family dinners, or whenever you need to feed a crowd.

Best Mashed Potato Casserole Recipe

Ingredients

Kitchen Equipment Needed

Step-by-Step Instructions

Preheat your oven to 350°F. While the oven is heating, spray your 9×13 inch baking dish generously with cooking spray to prevent sticking.

If your cream cheese isn’t already softened, cut it into small cubes and microwave it for 15 to 20 seconds to soften. This makes it much easier to mix.

In your large mixing bowl, combine the leftover mashed potatoes, sour cream, and softened cream cheese. Use an electric mixer on medium speed to beat everything together until smooth and well combined. This should take about 2 minutes.

Add 1 cup of the shredded cheddar cheese (saving the other cup for later), the crumbled bacon (reserve a little for topping), sliced green onions, minced garlic, onion powder, salt, and black pepper to the potato mixture.

Use the mixer on low speed or fold everything together with a rubber spatula until all ingredients are evenly distributed.

Spread the potato mixture evenly into your prepared baking dish. Use the spatula to smooth the top so it’s level. This ensures even cooking.

In a medium bowl, combine the melted butter and crushed butter crackers. Mix them together with a fork until the crackers are evenly coated with butter and the mixture looks crumbly.

Sprinkle the remaining 1 cup of shredded cheddar cheese evenly over the top of the potato mixture in the baking dish.

Distribute the buttered cracker crumbs evenly over the cheese layer. Press down gently with your hand to help the crumbs adhere.

Cover the baking dish with aluminum foil, making sure it doesn’t touch the top of the casserole. You can tent it slightly if needed.

Place the casserole in the preheated oven and bake covered for 25 minutes. This allows the casserole to heat through without the topping burning.

After 25 minutes, carefully remove the foil and return the casserole to the oven. Bake uncovered for an additional 15 to 20 minutes, or until the top is golden brown and crispy, and the cheese is bubbly.

Remove the casserole from the oven and let it rest for 5 minutes before serving. This resting time allows the casserole to set up slightly, making it easier to serve.

Garnish with the reserved bacon crumbles and chopped fresh chives. Serve hot directly from the baking dish.

Tips

This casserole can be assembled up to 24 hours in advance. Cover it tightly with plastic wrap and refrigerate.

When ready to bake, let it sit at room temperature for 30 minutes, then bake as directed, adding 5 to 10 extra minutes to the covered baking time.

Feel free to customize the mix-ins. Try adding diced ham, cooked sausage, steamed broccoli, or corn for variety.

For an extra indulgent version, add a layer of shredded cheese in the middle of the potato mixture before adding the top layer.

If you don’t have butter crackers, you can substitute with crushed cornflakes, potato chips, or even French fried onions for the topping.

Leftovers reheat beautifully in the microwave. Cover them loosely and heat on medium power to prevent drying out.

See Also: Million Dollar Chicken Casserole

5. Sweet Mashed Potato Fritters

Mashed Potato Fritters

These sweet mashed potato fritters offer a delightful twist on traditional savory potato dishes.

They’re lightly sweetened, crispy outside, and soft inside, making them perfect for breakfast or dessert.

Ingredients

Kitchen Equipment Needed

Step-by-Step Instructions

Place your leftover mashed potatoes in a large mixing bowl. If they’ve been refrigerated and are very cold, let them sit at room temperature for about 10 minutes. They should be cool but not ice cold.

Crack the eggs into the bowl with the potatoes. Add the vanilla extract as well. Use a whisk or fork to beat the eggs and vanilla together with the potatoes until everything is smooth and well combined.

In a separate small bowl, whisk together the flour, brown sugar, ground cinnamon, nutmeg, and salt. This ensures the dry ingredients are evenly mixed before adding them to the wet ingredients.

Add the dry ingredient mixture to the potato mixture. Stir everything together gently but thoroughly until you have a uniform batter with no streaks of flour visible. The mixture should be thick but scoopable.

Heat about ¼ inch of vegetable oil in your large skillet over medium heat. To test if the oil is ready, drop a tiny bit of batter into it. If it sizzles and starts to brown within a few seconds, you’re ready to fry.

Using an ice cream scoop or large spoon, scoop about 2 tablespoons of the potato mixture and carefully drop it into the hot oil.

Gently flatten it slightly with the back of the spoon to form a patty about ½ inch thick.

Repeat this process, adding more fritters to the pan, but don’t overcrowd it. Leave enough space between each fritter so they can cook evenly and you can flip them easily. You should be able to fit 4 to 5 fritters in the pan at once.

Cook the fritters without moving them for 2 to 3 minutes. The bottom should be golden brown and crispy before you flip them. If they’re browning too quickly, reduce the heat slightly.

Carefully flip each fritter using your turner spatula. Cook for another 2 to 3 minutes on the second side until both sides are evenly golden brown and crispy.

Remove the cooked fritters from the oil and place them on a wire rack set over a baking sheet.

The wire rack allows air to circulate around the fritters, keeping them crispy instead of soggy. If you don’t have a wire rack, use a plate lined with paper towels.

Continue cooking the remaining fritters, adding more oil to the pan if needed between batches. Make sure the oil comes back up to temperature before adding the next batch.

Once all the fritters are cooked and have cooled for just a minute or two, dust them generously with powdered sugar using a fine mesh sieve. The slight warmth helps the sugar stick.

Serve the fritters warm with maple syrup for dipping or drizzling. They’re also delicious with honey, chocolate sauce, or whipped cream.

Tips

If you’re using sweet potato mashed potatoes, they naturally have more moisture than regular potatoes. You may need to add an extra tablespoon of flour to the batter to compensate.

For extra flavor, try adding a tablespoon of orange zest or a handful of mini chocolate chips to the batter.

These fritters are best served fresh and warm, but you can make them ahead and reheat them in a 350°F oven for 5 to 7 minutes to restore their crispiness.

Don’t skip the step of heating your oil to the proper temperature. If the oil is too cool, the fritters will absorb too much oil and become greasy.

If it’s too hot, they’ll burn on the outside before cooking through.

For a fun variation, make them smaller and serve them as sweet potato bites for parties or gatherings.

See Also: Sweet Potato Casserole Recipe

Leftover Mashed Potato Recipes

Frequently Asked Questions

1. How long can I keep leftover mashed potatoes in the refrigerator?

Leftover mashed potatoes can be safely stored in the refrigerator for 3 to 5 days when kept in an airtight container.

Make sure to refrigerate them within 2 hours of cooking. For best quality and food safety, always check for any signs of spoilage like an off smell, discoloration, or mold before using them.

If you notice any of these signs, discard the mashed potatoes immediately. To extend their shelf life, you can also freeze mashed potatoes for up to 2 months.

Just transfer them to a freezer-safe container or bag, remove as much air as possible, and label with the date.

2. Can I use instant mashed potatoes for these recipes?

Yes, you can absolutely use instant mashed potatoes for these recipes. The key is to prepare them according to package directions and then let them cool completely before using them.

Instant mashed potatoes tend to be a bit lighter and fluffier than homemade ones, so you might need to adjust the amount of flour or binding ingredients slightly.

For the pancakes and fritters, you may need an extra tablespoon of flour. For the soup, instant mashed potatoes will dissolve quickly, giving you a smooth, creamy texture.

The cheesy potato balls and casserole work particularly well with instant mashed potatoes since the other ingredients help provide structure.

3. Can I make these recipes ahead of time and reheat them?

Most of these recipes can be made ahead with varying degrees of success. The mashed potato pancakes and fritters can be cooked, cooled completely, and stored in the refrigerator for up to 3 days.

Reheat them in a 350°F oven for about 10 minutes or in a skillet over medium heat to restore crispiness. The mashed potato soup actually tastes better the next day after the flavors have melded together.

Store it in the fridge and gently reheat on the stovetop. The casserole can be assembled up to 24 hours in advance and refrigerated before baking.

The cheesy potato balls can be formed and coated, then frozen for up to 3 months before frying.

4. What if my leftover mashed potatoes are very thick or dry?

If your leftover mashed potatoes are thick or dry, you can easily revive them before using them in these recipes. Add a splash of milk, cream, or chicken broth and stir well to loosen the consistency.

For the pancakes and fritters, slightly dry mashed potatoes actually work well because they hold together better.

For the soup, dry mashed potatoes will thicken it nicely, but you can always thin it out with more broth.

If your mashed potatoes are very chunky, you can either mash them smoother or leave them as is for a more rustic texture in your finished dish.

5. Are there any vegetarian or vegan alternatives for these recipes?

Absolutely! These recipes can easily be adapted for vegetarian and vegan diets. For vegetarian versions, simply omit the bacon or replace it with vegetarian bacon alternatives. Use vegetable broth instead of chicken broth in the soup.

For vegan versions, you’ll need to make a few more substitutions. Replace eggs with flax eggs (1 tablespoon ground flaxseed mixed with 3 tablespoons water per egg), use plant-based cheese alternatives, substitute dairy milk with almond, oat, or soy milk, and use vegan sour cream and butter.

The flavors will be slightly different, but the recipes will still work well and taste delicious.

Conclusion

Transforming leftover mashed potatoes into these creative dishes is a fantastic way to reduce food waste while treating your family to something special.

Each of these recipes brings something unique to the table, from the crispy satisfaction of pancakes and fritters to the comforting warmth of soup and casserole.

The beauty of these dishes lies not just in their delicious flavors, but also in their versatility and ease of preparation.

Don’t be afraid to experiment with these recipes by adding your favorite ingredients or adjusting seasonings to suit your taste preferences.

Mashed potatoes are incredibly forgiving and adapt well to different flavor profiles.

The next time you find yourself with leftover mashed potatoes, remember that you’re not just looking at leftovers—you’re looking at the foundation for your next amazing meal.

These recipes prove that with a little creativity, yesterday’s side dish can become today’s star attraction.

Leftover Mashed Potato Recipes

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