Cooking method
- Begin by preheating your oven to 400°F (200°C).
- In a mixing bowl, add the leftover mashed potatoes, cheddar cheese, and mozzarella cheese.
- Use a fork or a spatula to mix the ingredients until everything is well combined.
- Next, using a spoon, scoop out portions of the mixture and form them into small puffs or balls.
- Line a baking sheet with parchment paper and place each puff on it, giving some space between them.
- Bake the puffs in the preheated oven for 15-20 minutes or until they’re golden brown and crisp.
- After baking, remove them from the oven and let them cool slightly before serving. Enjoy!
Best ways to enjoy it
These cheesy puffs can stand alone as a snack, but you can elevate your serving experience with a few creative ideas. Consider pairing them with tangy dipping sauces like ranch, sriracha mayo, or even a homemade garlic aioli. For a beautiful presentation, place the puffs on a colorful platter garnished with fresh herbs. Serve them alongside a refreshing salad or some roasted vegetables to create a balanced meal easily.
Storage and reheating tips
To keep your leftover mashed potato cheese puffs fresh, store any uneaten servings in an airtight container in the refrigerator. They can last up to three days this way. Reheat them in the oven for about 10 minutes at 350°F (175°C) for that crispy texture, or pop them in the microwave for a quicker option—but the texture won’t be as ideal.
If you’re thinking ahead, these puffs also freeze beautifully! Just make sure they’re completely cooled down first. Lay them flat on a baking sheet until frozen solid, then transfer them to a freezer-safe bag or container. They can last up to a month. To reheat, bake from frozen at 375°F (190°C) for about 20-25 minutes.
Helpful cooking tips
- For a crispy texture, don’t overcrowd the baking sheet. Give each puff some space to allow for even cooking.
- You can mix in cooked bacon, chives, or even sun-dried tomatoes for an extra flavor boost.
- If you’re low on leftovers, instant mashed potatoes can work in a pinch; just adjust the moisture levels accordingly.
Creative twists
Feel free to experiment with these puffs! Consider adding in other cheeses such as pepper jack for a spicy kick or feta for a Mediterranean flair. You might also try incorporating herbs like dill or thyme to infuse a fresh taste. For a kick of flavor, add a touch of garlic powder or onion powder to the mixture before forming puffs.

Common questions
What is the prep time for this recipe?
The prep time is about 10 minutes, and the cooking time is around 15-20 minutes, making this dish a quick and easy option for any meal.
Can I use different types of cheese?
Absolutely! Feel free to experiment with your favorite cheese combinations. Just keep in mind that moisture levels may vary, so adjust accordingly.
How should I store the leftovers safely?
Store your cheese puffs in an airtight container in the refrigerator for up to three days, or freeze them for up to a month. Be sure they are completely cooled before freezing!
Creating a crowd-pleaser out of your leftovers has never been easier or tastier. Enjoy crafting these scrumptious Leftover Mashed Potato Cheese Puffs and watch how quickly they disappear!






