Creamy Twice-Baked Potato Casserole loaded with sharp cheddar, crisp bacon, garlic, and green onions. It’s comfort food taken to the next level!

Twice-Baked Potato Casserole in a baking dish.
chelsea

author’s note

The Side That Steals the Show!

I grew up loving a classic baked potato with all the fixings. But once I had a big crowd to feed and a small window to get dinner on the table, scooping hot potato skins for twenty people was not going to happen.

So I took the parts I love most from twice-baked potatoes and turned them into one big, bubbly pan. It was a hit.

After that dinner was such a success, I got to work testing so I could nail down a solid recipe to share with you. The edges get a little crisp, the middle stays silky, and every scoop has cheese, bacon, and green onion. If you have tried the Sam’s Club Twice Baked Potatoes, this has that same vibe, only creamier and built for a crowd.

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A composition of fresh ingredients for this recipe.

Twice-Baked Potato Casserole Ingredients

IngredientSwaps or tips
Gold potatoesRussets for a fluffier bite. Red potatoes hold shape more. Peel or leave skins on.
Fine sea saltKosher salt works. Salt the water well so potatoes are seasoned through.
Unsalted butterSalted butter works. Reduce added salt.
Milk or cream + sour creamCream is richest. Milk is lighter. Full-fat sour cream tastes best. Half-and-half works. Plain Greek yogurt is a lighter swap.
BaconCook until crisp. Turkey bacon works. Omit for vegetarian.
Green onionsChives or parsley also work.
Sharp CheddarTry Gouda, Monterey Jack, or Pepper Jack for heat.

Sizzling bacon strips in a hot skillet and potatoes simmering in a pan for Twice-Baked Potato Casserole.

How To Make Twice-Baked Potato Casserole

  1. Bake bacon: Set on a rack over a foil-lined sheet pan and bake until crisp. Fat drips off for extra-crispy slices.
  2. Potatoes: Cut into even cubes. Start in cold, well-salted water and cook until fork-tender.
  3. Warm dairy: On low heat, melt butter with milk or cream and sour cream until smooth.
  4. Mash: Add potatoes; rice for fluffy or mash for rustic. Do not overwork.
  5. Fold-ins: Gently fold in most cheese, bacon, and green onions. Save some for the top.
Crafting the creamy sauce and mashing potatoes for this recipe.

Let Me Convince You to Use a Ricer!

I’ve tested mashed potatoes every which way, and a ricer wins.

It makes the fluffiest, creamiest mash without the gummy texture from blenders or mixers. Since this casserole starts with mashed potatoes, a ricer keeps the base silky. It’s quick, easy, and fun to use, and it works for more than potatoes.

Mixing potatoes with bacon, cheese, and green onions before spreading in casserole dish.

Storage

  • Make ahead: Assemble, cover, and refrigerate up to 2 days. If baking cold, add 10 to 15 minutes.
  • Store: Cover leftovers and refrigerate 3 to 4 days.
  • Freeze: Wrap tightly and freeze up to 2 months. Thaw in the fridge overnight. Do not bake from frozen.
  • Reheat: Cover with foil and bake at 350°F until hot, then uncover to crisp the top. For single servings, microwave in short bursts.

What To Serve Alongside This:

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Twice-Baked Potato Casserole

Twice-Baked Potato Casserole is a creamy mix of potatoes, sharp Cheddar, crispy bacon, and a touch of garlic, all topped with fresh green onions. Ultimate comfort food!
Prep Time: 45 minutes
Cook Time: 30 minutes
Total Time: 1 hour 15 minutes
Servings: 8 servings (as a side dish)

Video

Equipment

  • Large sheet pan (15" x 21")
  • 9 x 9-inch baking pan or 7 x 11-inch casserole pan , see note 1
  • Ricer or potato masher

Ingredients

  • 12 slices bacon 12 ounces
  • 3 pounds baby gold potatoes 8 cups
  • Salt and pepper
  • 8 tablespoons unsalted butter
  • 1 cup heavy cream or whole milk
  • 3/4 cup sour cream
  • 1/2 teaspoon garlic powder
  • 1 bunch green onions divided, finely sliced
  • 2-1/2 cups shredded sharp Cheddar cheese 10.5 ounces, divided, see note 2

Instructions 

  • Preheat oven to 400°F. Line a large sheet pan with foil and place a greased cooling rack on top. Lay bacon slices evenly on the rack without overlapping. Bake 15–25 minutes or until crisp. Bacon will become crisper as it cools. Once cooled, set aside 3 slices for topping and dice the rest.
  • Meanwhile, peel potatoes and cube into 1-inch pieces. Add to a large pot and cover with 1 inch cold water. Add 1 tablespoon salt. Bring to a boil; then reduce to a rapid simmer and cook until potatoes are easily pierced with a fork, 15–20 minutes. Drain potatoes in a strainer and let dry 5 minutes.
  • In the same pot used for potatoes, set to low heat. Add butter, sour cream, heavy cream, garlic powder, 1 teaspoon salt, and pepper to taste (I add 1/2 teaspoon). Stir until smooth, then remove from heat.
  • While potatoes are still hot, pass them through a ricer directly into the cream mixture. If you don’t have a ricer, gently mash with a potato masher. (Avoid blending or beating the potatoes, as this can make them gluey.) Stir with a wooden spoon until smooth.
  • To the mashed potatoes, add diced bacon (excluding portion set aside for topping), 2 cups cheddar cheese, and 1/2 cup finely sliced green onions. Mix gently. Transfer mixture to a casserole dish (You may not be able to fit it all—don’t overfill; see note 1.) and smooth the surface. Sprinkle with remaining 1/2 cup cheese and reserved diced bacon. Cover dish loosely with foil and place on a sheet pan. Bake 20 minutes. Remove foil and continue baking an additional 10 minutes. Once done, garnish with 2 tablespoons sliced green onions. Serve and enjoy while hot!
Final step! Please let us know how it was by leaving a review.

Recipe Notes

Note 1: After testing with 8×8, 9×9, and 7×11-inch pans, I found the 9×9 to be the best. Be mindful not to overfill your dish; the potatoes do rise and may spill over (leave a 1/2-inch border at the top). If it won’t fit nicely in the casserole dish, enjoy it as a side of mashed potatoes!
Note 2: Sharp Cheddar is my preference flavor-wise, but medium or mild works too. For the best texture, grate the cheese yourself; pre-shredded can make the casserole greasy. When measuring, pack cheese gently into the cup to ensure the correct amount. You’ll need just under 11 ounces for this recipe.
Storage: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through.

Nutrition

Serving: 1serving | Calories: 859kcal | Carbohydrates: 35g | Protein: 28g | Fat: 68g | Saturated Fat: 36g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 20g | Trans Fat: 1g | Cholesterol: 178mg | Sodium: 794mg | Potassium: 951mg | Fiber: 4g | Sugar: 3g | Vitamin A: 1801IU | Vitamin C: 36mg | Calcium: 599mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Twice-Baked Potato Casserole FAQs

What is the difference between baked potato and twice baked potato?

A Baked Potato is cooked whole or in halves until soft inside with a crispy skin. It’s then typically served with simple toppings like shredded cheese, sour cream, and bacon.
A twice-baked potato involves baking, halving, and scooping out the inside, which is mixed with other ingredients, refilled into the skin, and baked again for a crispy top and creamy interior. 

Can I leave the skins on?

Yes. Skins add color and a little texture. Scrub well if leaving them on.

How do I keep potatoes from turning gummy?

Use a ricer or masher. Do not use a blender or food processor. Mash only until smooth.

Variations

Change Things Up In This Twice-Baked Potato Casserole

  • Different cheeses: Experiment with other cheeses like Gouda, Monterey Jack, or Pepper Jack.
  • Vegetarian twist: Omit the bacon!
  • Extra heat: Incorporate diced jalapeños or a dash of hot sauce into the mixture.
  • Meaty mix-ins: Try adding different cooked meats like diced ham or crumbled sausage.
  • Herb infusion: Mix in other fresh herbs such as rosemary, thyme, or dill.

Meet Chelsea


Hello, and welcome to Chelseaโ€™s Messy Apron! Iโ€™m Chelsea, the recipe developer, food photographer, and writer behind the site. Iโ€™m passionate about creating simple, reliable, and delicious recipes that anyone can make.

Thanks for stopping byโ€”I hope you find something delicious to make!

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