The fork tells you more than the clock when a russet is ready: it should slip into the center with almost no resistance, not catch on a firm spot. I bake the potatoes whole, then scoop and mash the tender centers with sour cream, milk, and butter for this Pioneer Woman Twice Baked Potato Casserole. Crisp bacon and sharp cheddar go into the filling and over the top, so each spoonful has a little smoky crunch and a melted-cheese finish.
This casserole serves eight and fits a 9×13-inch baking dish. Baking the potatoes directly on the oven rack gives the flesh time to become tender without boiling it in water, and the two-stage cheese addition keeps the filling cheesy while leaving a proper layer on top. After the final bake, green onions bring a fresh, mild bite to the rich potato and bacon underneath.
Kitchen Note
Drain the bacon before you crumble it. That keeps extra rendered fat out of the potato mixture, where it can make an already rich casserole feel greasy.
Save this Pioneer Woman Twice Baked Potato Casserole for a cozy side dish with a crisp bacon finish and a blanket of melted cheddar.
Why Baking the Russets on the Rack Keeps This Casserole from Turning Heavy
Russets are a good fit here because their starchy flesh becomes soft and fluffy when baked. The potatoes cook whole, right on the oven rack, rather than being peeled and boiled. That matters in a casserole where sour cream, milk, and melted butter are mixed into the potato: starting with tender baked flesh keeps the finished filling from carrying extra cooking water.
Give the potatoes room to bake and wait for the centers to turn very tender. If one is still firm in the middle, it will leave lumps when you mash it, even if the outside feels soft. Once the potatoes are ready, the filling should be mostly smooth, not beaten into a stretchy paste. That balance lets the casserole hold together while still eating like mashed potato, with bacon and cheddar tucked through every scoop.
Russets, Sharp Cheddar, and Bacon: What Each One Contributes
- Russet potatoes — Their fluffy texture is what gives the filling its familiar baked-potato character. Scrub and dry them before they go into the oven, and choose firm potatoes without soft spots. A waxier potato won’t mash up quite as light, so russets are worth choosing when you can.
- Sharp cheddar — The sharpness cuts through the buttery, creamy potato rather than disappearing into it. A block you shred yourself melts smoothly; pre-shredded cheddar is convenient and still works, though its coating can make the melted cheese less silky. If you only have a milder cheddar, use it in the same role and expect a gentler cheese flavor.
- Bacon — Bacon brings salt, smoke, and crisp bits to a soft filling. Regular sliced bacon works well; no specialty cut is needed. Cook it until crisp before crumbling so it keeps some texture after it is folded into the potatoes and baked again.
- Sour cream, whole milk, and butter — Together, these make the potato flesh creamy without turning it into a thin puree. Whole milk gives the mixture body, while sour cream adds a gentle tang. Use fresh dairy and melt the butter before stirring it in so it blends easily through the warm potato.
- Green onions — Their mild, fresh bite balances the richness, and the sliced pieces also give the finished casserole a little color. Thin slices distribute more evenly than thick chunks, so take a moment to cut them finely.
From Rack-Baked Potatoes to a Bubbling Cheddar Top
Bake the potatoes until the centers give easily
Heat the oven to 400°F. Scrub and dry the potatoes, pierce each one several times with a fork, and place them directly on the oven rack. Bake for 55 to 70 minutes, until the centers are very tender. Start checking near the shorter end of that range; larger potatoes may need the full time.
Cook and crumble the bacon
While the potatoes bake, cook the bacon in a skillet over medium heat for 8 to 10 minutes, turning it as needed. Look for crisp slices rather than bacon that still bends softly in the middle. Drain the cooked bacon, then crumble it once it is cool enough to handle. Keep the pieces bite-size so they spread through the casserole instead of clumping together.
Mash the warm potato with the creamy ingredients
Reduce the oven to 350°F and grease a 9×13-inch baking dish with 1 tablespoon of butter. Cut the potatoes in half and scoop the flesh into a large bowl. Melt the remaining 5 tablespoons of butter, add it with the sour cream, whole milk, kosher salt, and black pepper, then mash until mostly smooth. If a few small potato pieces remain, that’s fine; stop before the mixture turns gluey.
Fold in the first layer, then bake with the topping
Fold 1 1/2 cups of cheddar, half of the crumbled bacon, and 2 sliced green onions into the mashed potatoes. Spread the mixture evenly in the prepared baking dish, then top it with the remaining cheddar and bacon. Bake for 25 to 30 minutes, until heated through and the cheese is melted. Sprinkle with the remaining green onions and let the casserole rest for 5 minutes before serving.
Three Changes That Keep the Casserole’s Character
A meat-free, bacon-free version
Leave out the bacon and use sharp cheddar made with vegetarian rennet if you need the dish to be meat-free. The potato, dairy, and cheese still make a satisfying casserole, though you’ll lose the smoky, salty bacon contrast.
A chunkier potato texture
For a more rustic scoop, stop mashing while small soft pieces of potato are still visible. The finished casserole will feel less uniform and more like a loaded baked potato, while keeping the same cheddar, bacon, and creamy base.
A gentler onion finish
Leave out the green onions if you prefer a milder finish. The casserole will be richer and less sharp at the edges, with the bacon and cheddar taking the lead.
Storage and Reheating
- Refrigerator: Cover leftovers and refrigerate for up to 4 days. The potato mixture firms as it chills, then softens again when reheated.
- Freezer: Freeze cooled portions in airtight containers for up to 2 months. Thaw overnight in the refrigerator; the potatoes may be a little less fluffy after freezing.
- Reheating: Reheat portions in the microwave or warm the covered baking dish in a 350°F oven until hot throughout, reaching 165°F in the center. Don’t leave the dish uncovered for the whole reheating time, or the edges can dry before the middle is hot.
Questions That Come Up Before the Casserole Goes in the Oven
Pioneer Woman Twice Baked Potato Casserole
Ingredients
Equipment
Method
- Heat the oven to 400°F.
- Scrub and dry the potatoes, then pierce each several times with a fork.
- Bake the potatoes directly on the oven rack for 55 to 70 minutes, until the centers are very tender.
- While the potatoes bake, cook the bacon in a skillet over medium heat for 8 to 10 minutes, turning as needed, until crisp.
- Drain and crumble the bacon.
- Reduce the oven to 350°F.
- Grease a 9x13-inch baking dish with 1 tablespoon of the butter.
- Cut the potatoes in half and scoop the flesh into a large bowl.
- Melt the remaining 5 tablespoons butter.
- Add the melted butter, sour cream, whole milk, kosher salt, and black pepper to the potatoes, then mash until mostly smooth.
- Fold in 1 1/2 cups of the shredded sharp cheddar, half of the crumbled bacon, and 2 of the sliced green onions.
- Spread the mixture in the prepared baking dish.
- Top with the remaining cheddar and bacon.
- Bake for 25 to 30 minutes, until heated through and the cheese is melted.
- Sprinkle with the remaining green onions and let rest for 5 minutes before serving.
