Cheesy Baked Mashed Potatoes

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Cheesy baked mashed potatoes are an easy side dish. I’m going to go out on a limb and say potatoes are my favorite vegetable. There are other vegetables I like but not as much as the potato. In my house every holiday meal must have mashed potatoes but I’ve decided to mix up the “run of the mill” kind with these cheesy baked mashed potatoes.

Spread the mashed potato mixture in the prepared casserole dish. This is a dish that doesn’t take much more effort than making regular mashed potatoes. You still boil potatoes to mash but then mix in some milk, butter and cheese. I use a mixture of mozzarella cheese and Parmesan cheese. The mozzarella makes it a bit stringy meaning you can absolutely see the cheesy goodness.

These cheesy baked mashed potatoes are perfect with turkey, ham, roast beef and any other dish where you’d serve mashed potatoes. They are perfect for company when entertaining or any family dinner

More side dish options on the blog include:

Homemade Green Bean Casserole

Bacon and Cheddar Smashed Red Potatoes

Parmesan Roasted Asparagus

Cheesy Baked Mashed Potatoes

5 from 6 votes
Prep Time20 minutes
Cook Time30 minutes
Total Time50 minutes
Author: Ellen Folkman


  • 5 pounds russet potatoes
  • 1 1/2 cup milk
  • 3/4 cup butter, melted
  • 2 1/2 cups mozzarella cheese, shredded
  • 1 cup Parmesan cheese, grated, divided
  • Salt and freshly ground black pepper
  • 4 tablespoons Italian style breadcrumbs, not panko
  • Butter for coating casserole dish


  • Preheat the oven to 400 degrees F. Prepare a 3 1/2 quart casserole dish by coating it with butter.
  • Peel and cut potatoes into one inch cubes. Place potato cubes in large pot and cover with water. Boil over high heat until potatoes are fork tender. Drain potatoes and mash.
  • Add melted butter, milk, 3/4 cup of the Parmesan cheese and shredded mozzarella cheese to the potatoes stirring well to combine. Add salt and freshly ground black pepper to taste and stir. Transfer potatoes to prepared casserole dish.
  • In a separate bowl combine the breadcrumbs and remaining Parmesan cheese. Sprinkle this mixture over the potatoes.
  • Bake, uncovered, until the topping is golden and potatoes are piping hot, about 30 minutes.

Cheesy baked mashed potatoes are an easy side dish.

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  1. 5 stars
    This is such a good side dish for Christmas and Thanksgiving! I also like that the texture is a lot different from a potato bake. So if you have a highly textured stuffing, this would go really well to provide that ‘smooth’ sensation. Cheers!

  2. 5 stars
    These cheesy baked mashed potatoes sound so good! I’m sick of the plain old garlic ones and look forward to trying these for Thanksgiving!

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