Yummy Mashed Potato Bake

"This is a great way to use up any left-over mashed potatoes....goes wonderful with any meal....just mix and bake, so easy to prepare."
photo by Bay Laurel photo by Bay Laurel
photo by Bay Laurel
photo by Mamas Kitchen Hope photo by Mamas Kitchen Hope
Ready In:


  • 3 12 cups mashed potatoes (hot or cold, can use a little less)
  • 1 (8 ounce) package cream cheese, softened to room temp
  • 12 teaspoon onion powder (or to taste, or use 1/3 cup chopped yellow onion)
  • 2 eggs, slightly beaten
  • 2 tablespoons all-purpose flour
  • salt and pepper
  • 3 tablespoons butter, melted (see note) (optional)
  • 1 (3 1/2 ounce) can French-fried onions


  • Preheat oven to 300 degrees F.
  • Grease a 9-in square baking dish.
  • In a large bowl, mix mashed potatoes with cream cheese, onion, eggs and flour.
  • Beat at medium speed until well blended, then at high speed until light and fluffy.
  • Add salt and pepper.
  • Spoon into prepared baking dish.
  • Top evenly with canned onions.
  • Bake uncovered for 30-35 minutes.
  • NOTE: if the potatoes don't already have butter mixed in with them, add 3 tbsp melted butter, along with all the other ingredients.

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  1. We think leftovers don't keep very well as the onion topping becomes soggy and the flavors are "off" when reheated. Wonderful when it's freshly made, however. :) ***March 2010 Review: I originally received this recipe from my pastor's wife, and it was titled Puffy Potato Casserole. I used prepared mashed potatoes (that already had butter, salt, pepper, and milk added in) probably a little more than 3 1/2 cups. Also, the original recipe I have said to bake at 350 for 50 minutes (I did 375 for 20 minutes since I had other items in the oven). It came together easily, and everyone enjoyed it.
  2. True to form, I used a big can of French fried onions on top of my mashed potato bake. This dish was delicious. My DD ate it and asked for more...Thanks for sharing KITTENCAL! Made for Let's P-A-R-T-Y December cooking event 2009.
  3. Loved this recipe! I used up left over mashed potatoes, it was very easy to prepare. We didn't have french fried onions, and didn't need them. This is great even without that topping. I've already made this several times. Thanks so much for sharing!
  4. Great way to use those extra mashed potatoes that I always seem to have in the fridge. At first the texture was kind of 'gluey' so I added more potatoes then baked as instructed. Next time I think I will mix all the ingredients except the potatoes and then fold them into the beaten mix. I did also add 1 chopped green onion to this just for some color. Thanks for sharing this recipe Kitz.



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