A warm, cheesy Mashed Potato Casserole brings comfort like a cozy blanket on a chilly night. Picture creamy potatoes baked to golden perfection, topped with crispy breadcrumbs and gooey cheese that stretches like your favorite pair of sweatpants after Thanksgiving dinner. smoked sausage and rice Baked chicken legs with rice. For more inspiration, check out this Creamy Cheesy Potato Soup recipe.
This dish always takes me back to family gatherings where laughter filled the air and everyone fought for the last scoop, nearly sparking a riot. caramel apple cookie skillet Whether it’s a holiday feast or just a casual Sunday dinner, Mashed Potato Casserole is the star that steals the show every time.
Why You'll Love This Recipe
- This Mashed Potato Casserole is incredibly easy to make and perfect for feeding a crowd
- The rich flavors will have everyone asking for seconds
- Its golden, bubbly top creates an irresistible visual appeal that makes it perfect for any occasion
- Plus, it’s versatile enough to be served alongside chicken, beef, or even on its own as a comforting meal
I once made this dish for a potluck and ended up with an empty dish while my friends could barely move from their seats afterward due to sheer potato bliss.
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
Russet Potatoes: These starchy beauties create the fluffiest mash; choose firm ones without blemishes for the best results.
Butter: Use unsalted butter for better control over flavors; it adds richness and creaminess to the casserole.
Heavy Cream: Essential for achieving that dreamy texture; feel free to swap with milk if you’re watching calories.
Cheddar Cheese: Sharp cheddar works wonders here; it melts beautifully and gives the casserole its signature flavor. For more inspiration, check out this Croissant Breakfast Casserole recipe.
Breadcrumbs: Use seasoned or plain; they provide that delightful crunch topping that contrasts perfectly with soft potatoes. easy homemade bread.
Garlic Powder: A pinch of garlic powder elevates the flavor; don’t skip it unless you want bland potatoes.
Salt and Pepper: These staples enhance every bite; season generously but taste as you go for balance.
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it Together
Prep Your Potatoes: Start by peeling and chopping about 3 pounds of russet potatoes into even chunks. Place them in a large pot filled with cold water—this helps them cook evenly.
Boil Until Tender: Bring your pot of potatoes to a boil over medium-high heat. Let them simmer for about 15-20 minutes until fork-tender but not mushy—nobody wants potato soup!
Mash It Up: Drain your cooked potatoes and return them to the pot. Add in ½ cup of butter and 1 cup of heavy cream. Mash until smooth and creamy, then stir in 1 teaspoon of garlic powder along with salt and pepper to taste.
Add Cheese and More Flavor: Fold in 1 cup of shredded sharp cheddar cheese until melted into your creamy masterpiece. If desired, you can also mix in some sour cream for extra tanginess.
Layer Into Baking Dish: Preheat your oven to 350°F (175°C). Spread your mashed potato mixture evenly into a greased baking dish, smoothing out the top with a spatula.
Top It Off!: Sprinkle 1 cup of breadcrumbs evenly over the mashed potatoes followed by another sprinkle of cheese if you’re feeling indulgent. Bake in the preheated oven for 25-30 minutes until bubbly and golden brown on top.
After all this effort, you’ll find yourself staring at a glorious Mashed Potato Casserole that looks like it just stepped off the cover of a food magazine!
You Must Know
- This mashed potato casserole is creamy, cheesy, and a crowd-pleaser
- It’s perfect for family gatherings or cozy nights in
- The aroma will have everyone flocking to the kitchen, and you can easily adapt it with your favorite ingredients
Perfecting the Cooking Process
Start by boiling your potatoes until fork-tender, then mash them while still warm. Incorporate butter and cream for ideal texture before layering with cheese.
Add Your Touch
Feel free to swap out traditional ingredients with garlic or herbs for added flavor. Add crispy bacon bits for that extra crunch!
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in the oven at 350°F until warmed through, about 20 minutes.
Chef's Helpful Tips
- To achieve the best flavor, use freshly mashed potatoes instead of pre-packaged ones
- For a lighter version, substitute sour cream with Greek yogurt
- Always taste and adjust seasoning before serving for perfection!
Creating this mashed potato casserole has become a cherished family tradition during holidays; my aunt once said it was the only reason she attended Thanksgiving!
FAQ
Can I make mashed potato casserole ahead of time?
Absolutely! Prepare it a day before and refrigerate; just bake before serving.
What type of cheese works best in this casserole?
Cheddar cheese is classic, but feel free to experiment with gouda or mozzarella.
How can I make this dish gluten-free?
This recipe is naturally gluten-free! Just ensure all ingredients are certified gluten-free.

Mashed Potato Casserole
- Total Time: 45 minutes
- Yield: Serves about 8 people 1x
Description
Mashed Potato Casserole is the ultimate comfort food, perfect for gatherings or cozy nights in. This dish features creamy, fluffy mashed potatoes baked until golden brown and topped with crispy breadcrumbs and gooey cheddar cheese. With every bite, you’ll experience rich flavors that evoke warm memories of family and laughter. Serve it alongside your favorite proteins or enjoy it solo; this casserole is sure to steal the spotlight at any meal.
Ingredients
- 3 pounds russet potatoes
- ½ cup unsalted butter
- 1 cup heavy cream (or milk)
- 1 cup sharp cheddar cheese, shredded
- 1 cup breadcrumbs (seasoned or plain)
- 1 teaspoon garlic powder
- Salt and pepper to taste
Instructions
- Peel and chop the russet potatoes into even chunks. Place them in a large pot of cold water.
- Bring to a boil over medium-high heat and simmer for 15-20 minutes until fork-tender.
- Drain potatoes and return to the pot. Add butter and cream, then mash until smooth. Stir in garlic powder, salt, and pepper.
- Preheat oven to 350°F (175°C). Fold in cheddar cheese until melted.
- Spread the mixture into a greased baking dish, top with breadcrumbs, and additional cheese if desired.
- Bake for 25-30 minutes until bubbly and golden brown.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (240g)
- Calories: 400
- Sugar: 2g
- Sodium: 620mg
- Fat: 24g
- Saturated Fat: 14g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 4g
- Protein: 7g
- Cholesterol: 50mg
Keywords: For added flavor, mix in crispy bacon bits or fresh herbs like chives or rosemary. This casserole can be prepared ahead of time; refrigerate overnight before baking.