Potatoes. They’re like the blank canvas of the culinary world, right? You can do so much with ’em. And this twice baked potato casserole? It’s like mashed potatoes met a baked potato and had a delicious baby. If you’re lookin’ to impress without stressin’, this dish is your go-to.
What Makes This Casserole So Special?
So, what’s the big deal? Well, it’s all the goodness of twice-baked potatoes but in a casserole form. You get that creamy, cheesy, bacon-y magic without the hassle of scooping out skins. Plus, it’s perfect for feeding a crowd or just makin’ dinner a little more special.
Ingredients You’ll Need
- 4 medium russet potatoes (about 2 pounds)
- 1 tablespoon vegetable or canola oil
- ½ cup sour cream
- ¼ cup salted butter, cubed
- ½ cup milk (adjust for desired creaminess)
- 6 slices bacon, cooked and crumbled
- 2 cups shredded cheddar cheese
- 4 green onions, sliced
- ½ teaspoon salt
- ¼ teaspoon black pepper
- Fresh parsley or chives for garnish (optional)
Step-by-Step Guide
- Bake the Potatoes: Preheat your oven to 400°F (200°C). Scrub the potatoes clean, rub ’em with oil, and poke a few holes with a fork. Bake directly on the oven rack for 45–55 minutes until tender.
- Prepare the Filling: Let the baked potatoes cool slightly. Slice ’em in half and scoop out the flesh into a bowl, saving the skins from one potato for added texture. Mash the potato flesh with butter, sour cream, milk, salt, and pepper until smooth.
- Mix in the Goodies: Stir in 1½ cups of cheddar cheese, bacon, and green onions. Taste and adjust seasoning if needed.
- Assemble the Casserole: Transfer the potato mixture into a greased 8×8-inch baking dish. Top with the remaining ½ cup of cheddar cheese and reserved bacon.
- Bake Again: Place the casserole in the oven and bake at 375°F (190°C) for 25–30 minutes, or until the cheese is melted and bubbly.
- Garnish and Serve: Sprinkle with fresh parsley or chives before serving. Enjoy!
Tips for Success
- Potato Choice: Russet potatoes are ideal due to their high starch content, which makes for fluffy mashed potatoes.
- Creaminess: Adjust the amount of milk to achieve your desired consistency. Some prefer it thicker, others creamier.
- Make-Ahead Option: Prepare the casserole up to the baking step, cover, and refrigerate for up to 2 days. When ready to bake, let it sit at room temperature for 15 minutes before baking as directed.
- Freezing: This casserole freezes well. Assemble, cover tightly, and freeze for up to 2 months. Thaw overnight in the refrigerator before baking.
Nutritional Information (Per Serving)
- Calories: Approximately 499 kcal
- Protein: 11g
- Carbohydrates: 29g
- Fat: 30g
- Fiber: 2g
Final Thoughts
This twice baked potato casserole is a crowd-pleaser. It’s comfort food with a twist. Whether you’re hosting a dinner party or just want to treat yourself, this dish delivers. So, grab those potatoes and get bakin’!
FAQs
What type of potatoes work best for this casserole?
Russet potatoes are ideal for their fluffy, starchy texture.
Can I use a different cheese?
Yes, sharp cheddar, Monterey Jack, or a mix works well.
Is it possible to make it vegetarian?
Yes, simply omit bacon or use plant-based alternatives.
Can I prepare it ahead of time?
Absolutely, assemble, refrigerate up to 2 days, then bake.
Can I freeze this casserole?
Yes, cover tightly and freeze up to 2 months before baking.
How creamy should the potato mixture be?
Adjust milk to your preferred consistency, thicker or creamier.
Can I double the recipe for a larger group?
Yes, just use a bigger dish and extend baking time slightly.
Are there alternatives to bacon?
Sautéed mushrooms or caramelized onions add great flavor.
Can I use Yukon Gold potatoes instead?
Yes, they give a creamier texture than russets.
How long does it take to bake the casserole?
About 25–30 minutes at 375°F until cheese is bubbly.
Can I use a different type of potato?
Sure! Yukon Golds are a great alternative for a creamier texture.
Is there a vegetarian version?
Absolutely. Omit the bacon and consider adding sautéed mushrooms or extra green onions for flavor.
Can I double the recipe?
Yes, just use a larger baking dish and adjust the baking time as needed.

Marie Smith is a passionate recipe blogger, sharing easy, delicious, and creative culinary ideas that inspire home cooks to elevate everyday meals with flavor and simplicity.