Twice Baked Potatoes Casserole

Move over sweet potato casserole, there’s a new casserole in town! This easy Twice Baked Potato Casserole recipe will be your new go-to side dish! Loaded with bacon, cheddar cheese and sour cream, you just can’t go wrong!

spoon full of twice baked potato casserole with text overlay for facebook


Let’s talk potatoes for a minute. I can honestly say that some of my favorite recipes center around potatoes – they are just so versatile! I mean, with all of the ways to prepare them, they should really just be their own food group, right?

From mashed to fried to baked, the side dish recipes are endless! And don’t even get me started on the sweet potato recipes!

My Love Affair with Potatoes

When I was young, my grandpa was always in charge of making potatoes for the holidays. If he was making mashed potatoes, he’d always be sure to save me a beater to lick when he was finished – I thought that was such a treat!

I like them mashed, baked, fried, and even made into a casserole like this Twice Baked Potato Casserole. It is the best, and it’s one of my favorite ways to prepare loaded potatoes.

You will love this Potato Casserole Recipe

This casserole is a great way to use up leftover mashed potatoes, too. In fact, my favorite time to make it is after the holidays when I’m sure to have lots of leftovers.

Since I took the time to make mashed potatoes, why not turn the leftovers into an easy cheesy potato casserole?

So if you are a potato lover like me and you are looking for an easy side dish for twice baked potato casserole, look no further! All of the best parts of twice baked potatoes are simplified into this delicious casserole form with almost no prep time. It’s sure to be a huge hit with your family.

overhead shot of twice baked potato casserole

Mashed Potato Casserole ingredients

These easy ingredients create a magnificent dish!

  • Mashed potatoes – You can always make your own mashed potatoes (I would use russet potatoes or red potatoes) or even buy them premade at the store. Rather than using a potato masher, I’d use an electric mixer. We want creamy mashed potatoes, not chunky. And make sure the potato skins are removed.
  • Sharp cheddar cheese – For extra cheesy potatoes, we will be adding this directly to the potato mixture and also on top of the casserole too.
  • Sour cream – A lot of recipes call for cream cheese, but with all the sour cream and cheddar cheese, I find my twice-baked potato casserole to be just right.
  • Milk – Some recipes use heavy cream, but I find that milk works best. It thins this potato mixture down to exactly the right consistency that we need for this loaded potato casserole.
  • Butter – As always, I choose to use unsalted butter when cooking. That way I am able to control the amount of salt that goes into this perfect side dish.
  • Salt and pepper – I always use fine sea salt and freshly ground pepper for this casserole. If using salted butter, be sure to omit the salt all together.
  • Garlic powder – With all the goodness of the cheese, the only seasoning we really need for this easy casserole dish is garlic powder.
  • Bacon – You can’t have a twice-baked potato casserole recipe without crispy bacon! I like to crumble mine on top, but you could throw into the potato mixture as well.
  • Scallions – Sometimes called green onions, these babies not only add a little crunch and flavor, but they also add a pretty green color to the finished dish.
spoon in dish of twice baked potato casserole

How to Make Twice Baked Potato Casserole

  1. Prepare oven and casserole dish. Preheat oven and coat a casserole dish with cooking spray.
  2. Combine potato mixture. In a large bowl, combine mashed potatoes, some of the cheddar cheese, sour cream, milk, butter, fine sea salt, ground black pepper and garlic powder. Stir well and pour into prepared casserole dish.
  3. Add remaining cheese. Top with remaining shredded cheddar cheese.
  4. Bake. Bake for 15 minutes.
  5. Toppings. Remove and top with bacon crumbles and scallions.

How to serve this Baked Potato Casserole Recipe

This is really an all-in-one dish, but take it up a notch with items you’d serve at a baked potato bar. More crumbled bacon, scallions or chives, additional cheese butter and/or sour cream.

Leftovers can be transformed into mashed potato cups!

twice baked potato casserole on a plate

Storing Twice Baked Potatoes Casserole

Store any leftover potatoes in an airtight container or large dish covered in plastic wrap. This can be stored in the refrigerator for up to five days.

Check out my tips for freezing a casserole, too!

collage of twice baked potato casserole for pinterest

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Instant Pot Mashed Potatoes

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Baked Potatoes in the Oven

4.96 from 49 votes
The perfect baked potato in the oven has a crispy skin with fluffy inside. Top with butter, sour cream and chives!
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spoon of twice baked potato casserole with text overlay for pinterest
spoon in dish of twice baked potato casserole

Twice Baked Potato Casserole Recipe

4.50 from 22 votes
You will love how simple it is to make this easy Twice Baked Potato Casserole! Everything you love about twice baked potatoes is wrapped up into one easy dish.
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes
Servings: 8



  • Preheat oven to 350 degrees. Coat a casserole dish with cooking spray.
  • In a large mixing bowl, combine mashed potatoes, 3/4 cup cheddar cheese, sour cream, milk, butter, fine sea salt, ground black pepper and garlic powder. Stir well and pour into prepared casserole dish.
  • Top with remaining 3/4 cup shredded cheddar cheese.
  • Bake for 15 minutes.
  • Remove and top with bacon crumbles and scallions. Serve immediately.
  • If you’ve tried this recipe, make sure to come back and let us know how it was! 


Calories: 258 kcal, Carbohydrates: 26 g, Protein: 8 g, Fat: 13 g, Saturated Fat: 8 g, Cholesterol: 39 mg, Sodium: 335 mg, Potassium: 393 mg, Fiber: 2 g, Sugar: 2 g, Vitamin A: 435 IU, Vitamin C: 25 mg, Calcium: 188 mg, Iron: 0.6 mg
Author: Jessica Formicola
Calories: 258
Course: Side, Side Dish
Cuisine: American
Keyword: twice baked potato casserole
Did you make this recipe?I’d love to see your recipes – snap a picture and mention @savoryexperiments or tag #savoryexperiments!
Jessica Formicola in her ktichen

About the Author

Jessica Formicola

Jessica the mom, wife and chef behind Savory Experiments. You might see her on the Emmy- nominated TV show Plate It! or on bookshelves as a cookbook author. Jessica is a Le Cordon Bleu certified recipe developer and regularly contributed to Parade, Better Homes & Gardens, The Daily Meal and more!

Read More About Jessica

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Recipe Rating

Questions and Reviews

  1. 5 stars
    I love that you use sharp cheddar cheese and all the amazing potato topping. SO good! Thanks for the recipe.

  2. 5 stars
    I had twiced baked potatoes before but never a twiced baked casserole! This was amazing – a new favorite side dish!

  3. 5 stars
    The creamy, cheesy filling mixed with crispy bacon and green onions is just heavenly. It’s the perfect side dish for any meal and always a crowd-pleaser.

  4. 5 stars
    These twice baked potatoes are so much easier to make than the real potatoes! Perfect to go with just about any dish and loaded with flavor!

  5. 5 stars
    Love love love this recipe! Fabulous flavors and we plan to have it again very soon. Thanks for sharing it ❤️

  6. 5 stars
    Twice baked potato is one of our favorite but really love the casserole version! Makes it a little simpler to make!