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Dinner / Mashed Potato Casserole Dish: A Creamy and Delicious Comfort Food Recipe

Mashed Potato Casserole Dish: A Creamy and Delicious Comfort Food Recipe

May 12, 2025 by DottieDinner

Mashed Potato Casserole Dish is a comforting classic that brings warmth and joy to any gathering. This delightful recipe has its roots in traditional home cooking, where families would gather around the table to enjoy hearty meals. The creamy texture of the mashed potatoes combined with a crispy topping creates a perfect harmony of flavors that is simply irresistible. I love how this dish not only satisfies the taste buds but also evokes a sense of nostalgia, reminding us of family dinners and celebrations. People adore this Mashed Potato Casserole Dish for its convenience; it can be prepared ahead of time and baked just before serving, making it an ideal choice for busy weeknights or festive occasions. Join me as we explore this delicious recipe that is sure to become a favorite in your home!

Mashed Potato Casserole Dish

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 washing and peeling the russet potatoes. I like to use large potatoes for a creamier texture, but you can use any variety you prefer.
  2. Once peeled, cut the potatoes into even-sized cubes, about 1 to 2 inches. This ensures they cook evenly.
  3. Place the cubed potatoes into a large pot and cover them with cold water. Add a generous pinch of salt to the water to season the potatoes as they cook.
  4. Bring the pot 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 they are fork-tender.
  5. Once cooked, drain the potatoes in a colander and let them sit for a minute to allow excess moisture to evaporate.

Making the Mashed Potato Mixture

  1. In a large mixing bowl, add the drained potatoes. 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.
  2. Add the softened butter to the mashed potatoes. The warmth of the potatoes will help melt the butter, making it easier to incorporate.
  3. Next, mix in the sour cream and milk. This will add creaminess and a slight tang to the potatoes. Adjust the amount of milk based on how creamy you want your mixture to be.
  4. Stir in the garlic powder, onion powder, and season with salt and pepper to taste. I usually start with about 1 teaspoon of salt and 1/2 teaspoon of pepper, then adjust as needed.
  5. Finally, fold in the shredded cheddar cheese and grated Parmesan cheese. The cheese will melt into the warm potatoes, creating a deliciously cheesy flavor.

Assembling the Casserole

  1. Preheat your oven to 350°F (175°C). This will ensure that the casserole is hot and bubbly when it’s done baking.
  2. Grease a 9×13-inch baking dish with a little butter or cooking spray to prevent sticking.
  3. Transfer the mashed potato mixture into the prepared baking dish, spreading it out evenly with a spatula. Make sure to smooth the top for an even bake.
  4. If you like a crunchy topping, sprinkle the breadcrumbs evenly over the top of the mashed potatoes. This adds a delightful texture contrast to the creamy potatoes.
  5. For an extra cheesy touch, you can also sprinkle a little more shredded cheddar cheese on top of the breadcrumbs.

Baking the Casserole

  1. Once your casserole is assembled, place it in the preheated oven. Bake for about 25-30 minutes, or until the top is golden brown and the edges are bubbling.
  2. Keep an eye on it during the last few minutes of baking to ensure it doesn’t over-brown. If the top is browning too quickly, you can cover it loosely with aluminum foil.
  3. Once done, remove the casserole from the oven and let it sit for about 5-10 minutes before serving. This resting time allows the flavors to meld together and makes it easier to serve.

Garnishing and Serving

  1. Before serving, sprinkle the chopped green onions over the top of the casserole for a fresh, vibrant touch. The green onions add a nice pop of color and flavor.
  2. Using a large spoon or spatula

Mashed Potato Casserole Dish

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 potatoes combined with the crispy topping create a delightful contrast that will have your taste buds dancing with joy. Whether you’re serving it as a side for a holiday feast, a potluck gathering, or simply a cozy family dinner, this dish is sure to impress. For serving suggestions, consider pairing it with roasted meats, such as chicken or beef, or even a hearty vegetarian stew. You can also get creative with variations—try adding in some sautéed garlic, cheese, or even crispy bacon bits for an extra layer of flavor. The possibilities are endless! I encourage you to give this Mashed Potato Casserole Dish a try and make it your own. Once you do, I would love to hear about your experience! Share your thoughts, any tweaks you made, or even a photo of your delicious creation. Let’s spread the love for this comforting dish together!

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Mashed Potato Casserole Dish: A Creamy and Delicious Comfort Food Recipe


  • Author: Dottie
  • Total Time: 45 minutes
  • Yield: 6–8 servings 1x
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Description

This Cheesy Mashed Potato Casserole is a creamy and indulgent side dish featuring fluffy mashed potatoes blended with rich cheeses, garlic, and onion. Topped with a crunchy breadcrumb layer, it’s perfect for family gatherings and holiday feasts, offering a comforting addition to any meal.


Ingredients

Scale
  • 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

  1. Wash and peel the russet potatoes. Cut them into even-sized cubes, about 1 to 2 inches.
  2. Place the cubed potatoes in a large pot and cover with cold water. Add a pinch of salt.
  3. Bring to a boil over medium-high heat, then reduce to medium and simmer for 15-20 minutes until fork-tender.
  4. Drain the potatoes and let them sit for a minute to evaporate excess moisture.
  5. In a large mixing bowl, mash the drained potatoes to your desired creaminess.
  6. Add the softened butter and mix until incorporated.
  7. Stir in the sour cream and milk, adjusting the milk for desired creaminess.
  8. Add garlic powder, onion powder, and season with salt and pepper to taste.
  9. Fold in the shredded cheddar and grated Parmesan cheese.
  10. Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking dish.
  11. Transfer the mashed potato mixture to the baking dish, smoothing the top.
  12. If desired, sprinkle breadcrumbs over the top for a crunchy texture.
  13. Bake in the preheated oven for 25-30 minutes until the top is golden brown and edges are bubbling.
  14. Cover loosely with aluminum foil if the top browns too quickly.
  15. Let sit for 5-10 minutes before serving.
  16. Sprinkle chopped green onions over the top before serving.
  17. Serve warm and enjoy!

Notes

  • Feel free to customize the cheese blend to your liking. Other cheeses like mozzarella or gouda can be used for different flavors.
  • For a spicier kick, consider adding some diced jalapeños or a dash of hot sauce to the potato mixture.
  • This casserole can be prepared ahead of time and stored in the refrigerator before baking. Just add a few extra minutes to the baking time if baking from cold.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes

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