Name: Twice Baked Potato Casserole
Prep time: 15 min
Cook time: 1 h 10 min
Total time: 1 h 25 min
Ingredients: 6 large Yukon gold potatoes; 1 tablespoon olive oil; Kosher salt; Ground black pepper; 6 slices thick bacon, cooked, crumbled and divided (about 3/4 cup); 1 and 1/2 cups sour cream; 1/4 cup unsalted butter, melted and slightly cooled; 1 teaspoon garlic salt; 2 cups shredded sharp cheddar cheese, divided; Minced chives, for garnishing

Tender chunks of baked potato, salty bacon, and cheddar cheese in a rich sour cream sauce baked hot and bubbly. Twice Baked Potato Casserole is your favorite potatoes made easy!

A square white baking dish of potato casserole topped with bacon bits and melted cheese.

Easy Twice Baked Potatoes

If you love twice baked potatoes but don’t love the work that goes into them, Twice Baked Potato Casserole to the rescue! Crispy, salty bacon, sharp cheddar cheese and chunks of oven-baked potatoes in a tangy sour cream sauce baked under a layer of melting cheese. Top it off with chives and bits of bacon for complete bliss.

A bite of twice baked potato casserole on a fork.

The Perfect Side Dish!

I love serving these absolutely addictive potatoes with everything from casual grilled turkey burgers or hamburgers on build-your-own burger night. This casserole goes GREAT with a reverse seared steak and a kale salad. It truly pairs well with everything and everyone is a fan.

A small white plate of twice baked potato casserole on a white marble counter.

The Best Potato for the Job

What kind of potatoes are best for baking? Which go best in stews? Here’s my go-to guide for choosing the best potato for whatever you’re making.

Mashed potatoes: Yukon gold potatoes are perfect for mashed potatoes or twice baked potatoes because they become creamy and not-too-starchy when boiled.
Baked potatoes: Russet potatoes bake up with a crisp, delicious skin.
Beef stew: Baby Yukon gold potatoes or baby red potatoes soak up the flavor while holding their shape.
Oven-roasted: Baby red potatoes, baby gold potatoes, and fingerling potatoes are the perfect size for roasting up crispy on the outside and tender on the inside. Their skins are delicate, so you don’t need to peel them.
Potato Salad: I prefer petite potatoes like baby red or baby gold for potato salad, especially if I intend to keep the skins on. They boil to become tender without falling apart.

Ingredients and Supplies

(see recipe card at the bottom of this post for measurements and details)

Ingredients:

Yukon gold potatoes: They’re the star of this casserole. They have a creamy and slightly buttery texture. The crispy chunks rebake so great with the other ingredients.
Olive oil: Used to coat the potatoes for roasting, promoting golden crispiness.
Kosher salt: Seasons the potatoes before roasting, enhancing flavor from the start. If you only have table salt, use less.
Ground black pepper: Adds a little heat and savory complexity. Freshly crack the pepper over the potatoes before roasting for the best flavor punch.
Sliced thick bacon (cooked & crumbled): Provides crispy, smoky richness throughout the casserole and as a garnish. Cook the bacon while the potatoes roast to save time; crumble once cooled to avoid greasy bits.
Sour cream: Forms the creamy coating that binds together the roasted potatoes.
Unsalted butter (melted and slightly cooled): Adds rich flavor and helps the sour cream mixture coat the potatoes. Let it cool slightly before whisking with the sour cream to prevent breaking the mixture.
Garlic salt: Seasons the sour cream and butter mixture with both garlic and salt in one step.
Shredded sharp cheddar cheese: Melts into and on top of the casserole for cheesy goodness all throughout. Freshly shredded cheese melts best, but packaged shredded cheese works, too.
Minced chives (for garnishing): Adds a pop of color and a fresh, mild onion finish.

Supplies:

Ingredients to make Twice Baked Potato Casserole ins mall glass dishes on a white marble counter.

How to Make Twice Baked Potato Casserole

Preheat oven to 400°F. Line a rimmed sheet pan with foil and spray with nonstick cooking spray.
Wash and then cut the potatoes into bite-sized pieces. Pat the potato chunks dry.
Place the potato chunks on the prepared sheet pan and toss with 1 tablespoon olive oil. Spread into an even layer and sprinkle generously with salt and pepper.
Bake for 40-45 minutes or until golden brown and starting to crisp all over, stirring occasionally.

Steps to make Twice Baked Potato Casserole.

Meanwhile, cook bacon until crispy. Let cool and then crumble into bits. Reserve 2 tablespoons of the crumbled bacon to garnish the casserole with after it bakes.
Remove the potatoes from the oven and reduce the oven temperature to 350°F. Spray an 8 or 9-inch square baking dish with nonstick cooking spray.
Add the sour cream, melted butter and garlic salt to a large mixing bowl and whisk to combine well.

Transfer the baked potato chunks to the mixing bowl.
Stir to coat the potatoes well in the sour cream mixture.
Fold in 1 and 1/2 cups of the shredded cheddar cheese and the crumbled bacon until well distributed.

Transfer the potato mixture to the prepared baking dish.
Sprinkle the remaining 1/2 cup shredded cheese over the potatoes in the baking dish.

Potatoes in a sour cream sauce in a square white baking dish.

Bake for 20-25 minutes or until cheese is bubbling and start to brown in spots on top.
Serve garnished with reserved bacon bits and minced chives.

Twice baked potato casserole in a square white glass baking dish on a white marble counter.

Storage, Reheating & Make Ahead

To store, transfer the cooled leftovers to an airtight container or cover the baking dish tightly with plastic wrap to store in the refrigerator for up to three days.

To reheat leftover twice baked potato casserole, cover loosely with foil in a baking dish and bake in a 300°F oven until heated through and bubbly again. To reheat in the microwave, place in a microwave-safe dish and microwave for about 2 minutes or until warmed through, stirring halfway through.

To Make ahead, prepare the casserole completely in the baking dish. Then cover it tightly to store in the refrigerator for up to 2 days. When ready to bake, set it out while the oven preheats and then bake for closer to 30 minutes to make sure it’s heated through.

Crazy Good Casseroles

Find yourself short on time and inspiration? Look no further than my Crazy Good Casserole Recipes for delicious ideas that get dinner done right!

Chicken parmesan casserole, beef stroganoff casserole, sloppy Joe casserole and Buffalo chicken biscuit bake.

If you make my Twice Baked Potato Casserole, be sure to snap a picture and share it with me on Instagram @thebakermama so I can see. If you’re on Facebook, be sure to join my Friends of The BakerMama group to connect and share all the fun and yummy recipes of mine that you make! 😍 I just love seeing how inspired and creative y’all get with the ideas I share. Enjoy!

xoxo,