Mashed Potato Casserole Dish is a comforting classic that brings warmth and joy to any gathering. As the weather cools and the holiday season approaches, this dish becomes a staple on our family table, evoking memories of shared meals and laughter. The creamy texture of the mashed potatoes, combined with a crispy topping, creates a delightful contrast that keeps everyone coming back for seconds.
Originating from the heart of American cuisine, the mashed potato casserole has evolved over the years, becoming a beloved side dish at potlucks and family dinners alike. People adore this dish not only for its rich flavor but also for its convenience; it can be prepared ahead of time and baked just before serving. Whether youre hosting a festive gathering or simply looking for a cozy weeknight meal, this Mashed Potato Casserole Dish is sure to impress and satisfy. Join me as we dive into this delicious recipe that is bound to become a favorite in your home!

Ingredients:
- 4 large russet potatoes, peeled and cubed
- 1/2 cup unsalted butter, softened
- 1/2 cup sour cream
- 1/2 cup milk
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- Salt and pepper to taste
- 1/2 cup green onions, chopped (for garnish)
- 1/2 cup breadcrumbs (optional, for topping)
Preparing the Potatoes
1. Start by filling a large pot with water and adding a generous pinch of salt. This will help season the potatoes as they cook. 2. Place the cubed russet potatoes into the pot and bring the water to a boil over medium-high heat. 3. Once boiling, reduce the heat to medium and let the potatoes simmer for about 15-20 minutes, or until they are fork-tender. You can check this by poking a potato cube with a fork; it should easily break apart. 4. Once cooked, drain the potatoes in a colander and let them sit for a few minutes to allow excess moisture to evaporate. This step is crucial for achieving a creamy texture in your mashed potatoes.Making the Mashed Potatoes
5. In a large mixing bowl, add the drained potatoes. 6. Using a potato masher or a hand mixer, begin mashing the potatoes until they reach your desired level of creaminess. I prefer a smooth texture, but you can leave some lumps if you like a bit of rustic charm. 7. Add the softened butter to the mashed potatoes and mix until its fully incorporated. The heat from the potatoes will help melt the butter, making it easier to blend. 8. Next, pour in the sour cream and milk. Stir well until everything is combined and the mixture is creamy. If you prefer a richer flavor, you can adjust the amount of sour cream and milk to your liking. 9. Sprinkle in the garlic powder, onion powder, and season with salt and pepper. Taste the mixture and adjust the seasoning as needed. This is your chance to make it just right!Adding the Cheeses
10. Now, its time to add the cheeses! Fold in the shredded cheddar cheese and grated Parmesan cheese into the mashed potato mixture. The cheddar will give it a nice cheesy flavor, while the Parmesan adds a touch of nuttiness. 11. Once the cheeses are well incorporated, transfer the mashed potato mixture into a greased 9×13 inch baking dish. Spread it out evenly with a spatula.Preparing the Topping (Optional)
12. If you want to add a crunchy topping, mix the breadcrumbs with a tablespoon of melted butter in a small bowl. This will help the breadcrumbs brown nicely in the oven. 13. Evenly sprinkle the breadcrumb mixture over the top of the mashed potatoes. If you prefer a cheesier topping, you can also sprinkle some additional shredded cheddar cheese on top.Baking the Casserole
14. Preheat your oven to 350°F (175°C). This step is important to ensure that the casserole heats evenly. 15. Once the oven is preheated, place the baking dish in the oven and bake for about 25-30 minutes. You want the top to be golden brown and the edges to be bubbling slightly. 16. After baking, remove the casserole from the oven and let it cool for about 5-10 minutes. This will help the casserole set a bit, making it easier to serve.Garnishing and Serving
17. Before serving, sprinkle the chopped green onions over the top for a fresh, vibrant touch. The green onions not only add color but also a nice crunch and flavor contrast. 18. Use a large spoon or spatula to scoop out portions of the casserole. Serve it warm as a side dish or even as a main course with a salad on the side.Storage and Reheating
19. If you have leftovers (which is rare because this dish is so delicious!), let the casserole cool completely before covering it with plastic wrap or aluminum foil. Store it in the refrigerator for up to 3-4 days. 20. To reheat, simply place the casserole in a preheated oven at 350°F (175°C) for about 15-20 minutes, or until heated through. You can also microwave individual portions if
Conclusion:
In summary, this Mashed Potato Casserole Dish is an absolute must-try for anyone looking to elevate their comfort food game. The creamy, buttery mashed potatoes combined with the crispy topping create a delightful contrast that will have your taste buds dancing with joy. Whether you’re serving it at a family gathering, a holiday feast, or just a cozy weeknight dinner, this dish is sure to impress. For serving suggestions, consider pairing this casserole with a succulent roast chicken or a hearty beef stew. You can also add your own twist by incorporating ingredients like garlic, cheese, or even sautéed vegetables into the mashed potatoes for an extra layer of flavor. If you’re feeling adventurous, try swapping out the traditional toppings for something unique, like crushed crackers or a sprinkle of fresh herbs. I encourage you to give this Mashed Potato Casserole Dish a try and make it your own! Once youve whipped it up, Id love to hear about your experience. Share your thoughts, variations, and any tips you might have in the comments below. Lets spread the love for this delicious dish together! Happy cooking! Print
Mashed Potato Casserole Dish: A Creamy and Delicious Comfort Food Recipe
- Total Time: 45 minutes
- Yield: 6–8 servings 1x
Description
Indulge in a creamy and cheesy mashed potato casserole, baked to a golden perfection. This comforting dish is ideal as a side or a hearty main course, sure to please everyone at the table.
Ingredients
- 4 large russet potatoes, peeled and cubed
- 1/2 cup unsalted butter, softened
- 1/2 cup sour cream
- 1/2 cup milk
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- Salt and pepper to taste
- 1/2 cup green onions, chopped (for garnish)
- 1/2 cup breadcrumbs (optional, for topping)
Instructions
- Fill a large pot with water and add a generous pinch of salt. Place the cubed russet potatoes into the pot and bring the water to a boil over medium-high heat. Once boiling, reduce the heat to medium and let the potatoes simmer for about 15-20 minutes, or until fork-tender. Drain the potatoes in a colander and let them sit for a few minutes to allow excess moisture to evaporate.
- In a large mixing bowl, add the drained potatoes. Using a potato masher or hand mixer, mash the potatoes until they reach your desired creaminess. Add the softened butter and mix until fully incorporated. Pour in the sour cream and milk, stirring until creamy. Sprinkle in the garlic powder, onion powder, and season with salt and pepper. Adjust seasoning to taste.
- Fold in the shredded cheddar cheese and grated Parmesan cheese into the mashed potato mixture. Transfer the mixture into a greased 9×13 inch baking dish and spread it out evenly.
- If desired, mix the breadcrumbs with a tablespoon of melted butter in a small bowl. Evenly sprinkle the breadcrumb mixture over the top of the mashed potatoes. Optionally, add more shredded cheddar cheese on top.
- Preheat your oven to 350°F (175°C). Once preheated, place the baking dish in the oven and bake for about 25-30 minutes, until the top is golden brown and the edges are bubbling. Remove from the oven and let cool for 5-10 minutes.
- Sprinkle the chopped green onions over the top before serving. Use a large spoon or spatula to scoop out portions and serve warm as a side dish or main course.
Notes
- For a richer flavor, adjust the amount of sour cream and milk to your liking.
- Feel free to customize the cheese blend or add herbs for extra flavor.
- Leftovers can be stored in the refrigerator for up to 3-4 days.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
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