Mashed potato casserole is a comforting, creamy dish that takes mashed potatoes to the next level. It’s a perfect side dish for family gatherings, holidays, or any occasion when you want something indulgent and satisfying. The creamy mashed potatoes are baked to perfection with a golden, crispy top and a rich, velvety interior, making this casserole a true crowd-pleaser.
To make mashed potato casserole, start by boiling peeled potatoes until they are fork-tender. Once cooked, mash them with butter, cream, and milk, creating a smooth, fluffy texture. For added flavor, stir in sour cream or cream cheese, which adds richness and tang to the potatoes. Season generously with salt, pepper, and garlic powder for a savory base.
Once the mashed potatoes are seasoned and creamy, transfer them into a greased baking dish and spread them evenly. For an extra indulgent touch, top the casserole with shredded cheese – cheddar is a popular choice, but you can use a blend of your favorites for a more complex flavor. A sprinkle of crispy bacon bits or green onions can add texture and a burst of flavor on top.
Bake the casserole in the oven until the cheese is melted and bubbly, and the top turns golden brown and slightly crispy. The result is a comforting dish with a perfect balance of creamy, cheesy, and savory flavors, complemented by the crispy top layer that adds texture.
Mashed potato casserole is versatile and can be customized with various add-ins, like sautéed onions, roasted garlic, or fresh herbs like thyme or parsley. It pairs wonderfully with roasted meats, grilled steaks, or even as a stand-alone dish for a hearty vegetarian meal.
Whether you’re serving it alongside turkey at Thanksgiving or enjoying it with a weeknight roast, mashed potato casserole is a comforting and delicious dish that’s always sure to impress.
Ingredients
- 4 cups mashed potatoes prepared and seasoned to taste
- 1 cup sour cream
- 1/2 cup shredded cheese such as cheddar, divided
- 1/2 cup crispy bacon bits optional
- 2 tablespoons chives chopped, plus more for garnish
Instructions
- Preheat the oven to 350°F (175°C).
- In a large bowl, combine the mashed potatoes, sour cream, 1/4 cup shredded cheese, bacon bits (if using), and chives.
- Spread the mixture into a greased baking dish.
- Top with the remaining 1/4 cup of cheese.
- Bake in the preheated oven for 35 minutes or until the top is golden and bubbly.
- Garnish with additional chives before serving.
Nutrition
This is the ultimate comfort food! My family loved it. Definitely making again! 🥔❤️
I’m so glad your family loved it! This dish is a winner for sure. 🥔💖
This sounds good, but I don’t get why you’d add sour cream. Isn’t that just extra calories? 🤔
Meh. Just mash potatoes already. Why all these extra steps?!
But the oven makes it all melty and yummy! Give it a try!
Honestly, I thought this was too rich. The sour cream really overpowers the potatoes. Maybe cut back on it?
I actually loved the creaminess! Maybe just use less if you’re not a fan of rich flavors?
I didn’t have bacon, so I used ham. Still taste yummy! However, can someone tell me if I can freeze this?
Casserole?? I thought this was mashed potatoes, not what I thought from a restaurant. Confused.
Tasted great but a bit too rich for my liking. I think I would skip the bacon next time.
Why do you need the chives? Seems extra. Can’t you just make mashed potatoes?
Meh. It was alright, but didn’t blow my mind. Potatoes are kinda plain without enough seasoning.
I guess it’s all about personal taste! Maybe try adding garlic or herbs next time for more flavor?
This casserole is like a warm hug on a plate! I added some garlic powder and it was delicious. Will definitely make again!
Sounds delicious! Can’t wait to try the garlic powder addition! 😋
My mashed potatoes turned out a little lumpy. Maybe I didn’t mash them enough? Anyway, it still tasted good with the cheese!
I thought this was just plain old mashed potatoes, but it was so much better baked! Who knew??
This casserole is divine! So creamy and cheesy. My family devoured it!
I absolutely loved this! It’s like mashed potatoes on steroids! Will definitely make again.
This is like the classic comfort food! Great for potlucks.
Tasty, but I forgot the chives. Still turned out great tho!
I dunno, seems a bit complicated for mashed potatos. Why not just mash?
I don’t get why everyone loves it. It’s just potatoes. Should’ve added onion or something to jazz it up.
Tried this but wasn’t impressed. The sour cream was overpowering.
I totally get what you mean! The sour cream can be a bit much if you’re not into tangy flavors. Maybe next time use less? Just a suggestion!
Nah, I loved it! The sour cream gives it a creaminess that is just perfect. Maybe try a different brand? Some are stronger than others.
I love this recipe! But are chives really necessary? I might skip them next time.
Chives add a nice flavor and color, but you can totally skip them! Still gonna be delicious! 😋
I can’t believe you would put bacon in this! What a weird combo. Why mess with mashed potatoes?
I totally disagree! Bacon makes everything better, even mashed potatoes. It adds flavor.
But why bacon? It’s just mashed potatoes, not a breakfast plate. Sounds strange to me.
What’s the point of sour cream? Seems weird to me. Just seems like a recipe for a stomach ache.
I forgot the cheese.. still good tho!
I tried it, and it turned out pretty bland. Maybe I need to season my potatoes better next time?
Came out great, but I forgot the chives, and I think it was better without them. Yum!
Okay, but I didn’t have bacon and it was still good. Just wasn’t as flavorful, ya know? Going to try with bacon next time.
Just wow! So cheesy and creamy, my kids gobbled it up. Best mashed potato recipe ever!
Amazing!! I cooked it for 40 minutes and it was golden brown. Perfect side dish for Thanksgiving. Yum!
I LOVE this! My kids devoured it and asked for seconds! Thanks for sharing this recipe. Great for dinner!
This was a hit at my family dinner! Everyone loved it. The bacon made it extra special!
I’m glad your family loved it! Bacon really does make everything better! 😊
This is wayyy too cheesy, even for me. And that’s saying something! 2 stars from me.
simple and good
This was a hit at our family gathering! Everyone loved it. Will definitely make again.
Just okay. I felt like it needed something…maybe garlic?
Why do people put bacon in everything? I don’t see the point. No bacon for me!
Yum! So cheesy and creamy. I could eat this every day! 😊
I followed it exactly but mine came out a bit dry. Next time I’ll probably use more sour cream or cover with foil for half the bake. Flavor was still good though.
I don’t know. Seems like a lotta calories. Is it really good for you?
Too much sour cream for my taste! Will use less next time. Thank you for the idea tho.
I made this for a potluck, but my mashed potatoes turned out lumpy. Still tasted alright tho. Not perfect.
I dunno, just didn’t hit the spot for me. My kids didn’t even want to eat it. They said it tasted weird.