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The Best Mashed Potato Casserole Recipe

The Best Mashed Potato Casserole Recipe


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4.6 from 8 reviews

  • Total Time: 1 hour 10 minutes
  • Yield: 8 1x

Description

Hearty comfort meets culinary magic in this irresistible Mashed Potato Casserole that promises creamy, cheesy goodness in every bite. Rich layers of smooth potatoes and golden cheese create a soul-warming dish you’ll crave at every gathering.


Ingredients

Scale

Main Ingredients:

  • 3 pounds russet potatoes, peeled and chopped
  • 7 tablespoons butter
  • 1 cup cheddar cheese
  • 1/2 cup cheddar cheese
  • 1/2 cup sour cream
  • 1/4 cup milk
  • 5 strips bacon

Seasoning and Spices:

  • 1/2 teaspoon garlic powder
  • 3/4 teaspoon salt

Topping Ingredients:

  • 1/4 cup panko breadcrumbs
  • 2 tablespoons chives, chopped
  • Water for boiling

Instructions

  1. Prepare the potatoes by peeling and chopping them into uniform chunks for even cooking.
  2. Submerge potato pieces in a generously salted pot of cold water, bringing to a rolling boil and cooking until fork-tender, approximately 15-20 minutes.
  3. Thoroughly drain the potatoes, allowing excess moisture to evaporate completely.
  4. Return potatoes to the warm pot and incorporate butter, sour cream, milk, garlic powder, and salt, using a masher to create a creamy, smooth texture.
  5. Gently fold in shredded cheddar cheese, ensuring even distribution throughout the potato mixture.
  6. Preheat the oven to 375°F and generously coat a 9×13 baking dish with butter to prevent sticking.
  7. Transfer the potato mixture into the prepared baking dish, spreading evenly with a spatula to create a uniform layer.
  8. Create a flavorful topping by combining panko breadcrumbs, freshly chopped chives, crispy crumbled bacon, and additional cheddar cheese in a separate bowl.
  9. Sprinkle the topping mixture uniformly across the potato surface, ensuring complete coverage.
  10. Dot the top with remaining butter to enhance golden browning and add richness.
  11. Bake in the preheated oven for 20-25 minutes until the topping transforms into a crisp, golden-brown crust and the casserole is thoroughly heated.
  12. Remove from oven and let rest for a few minutes before serving to allow flavors to settle and make cutting easier.
  13. Serve immediately while warm, revealing a creamy interior and crunchy topping.

Notes

  • Boost potato flavor by using Yukon Gold or Russet potatoes for their creamy, starchy texture that creates ultra-smooth mashed potatoes.
  • Control moisture by thoroughly draining potatoes after boiling to prevent watery casserole and ensure a perfect, fluffy consistency.
  • Customize toppings with alternative ingredients like green onions, crispy shallots, or smoked gouda for unique flavor variations.
  • Make the dish gluten-free by substituting panko breadcrumbs with gluten-free alternatives like crushed rice crackers or almond meal.
  • Prep Time: 25 minutes
  • Cook Time: 45 minutes
  • Category: Dinner, Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 8
  • Calories: 320
  • Sugar: 2 g
  • Sodium: 450 mg
  • Fat: 18 g
  • Saturated Fat: 10 g
  • Unsaturated Fat: 6 g
  • Trans Fat: 0 g
  • Carbohydrates: 34 g
  • Fiber: 3 g
  • Protein: 8 g
  • Cholesterol: 40 mg