Description

This Mashed Potato Casserole is a creamy, cheesy, and flavorful comfort food dish perfect for cozy family dinners or festive gatherings. Made with fluffy Yukon Gold or Russet potatoes, rich butter, sour cream, and melty sharp cheddar or mozzarella cheese, it features layers of smooth mashed potatoes, savory toppings like bacon bits, and fresh herbs for brightness. Easy to prepare, versatile, and make-ahead friendly, this casserole warms the heart and satisfies appetites with homemade goodness.

Ingredients

Scale

Potatoes & Dairy

2 pounds Yukon Gold or Russet potatoes, peeled and cut into chunks
1/2 cup (1 stick) unsalted butter, melted
1 cup warm milk or cream
1/2 cup sour cream

Cheese & Toppings

1 1/2 cups shredded sharp cheddar or mozzarella cheese, divided
1/2 cup bacon bits (optional)
1/4 cup chopped green onions or chives

Seasonings

Salt, to taste
Black pepper, to taste

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Instructions

Prepare the Potatoes: Peel and cut the potatoes into even chunks to ensure quick and uniform cooking. Boil the potatoes in salted water for about 15 to 20 minutes, or until they are fork-tender.
Mash and Mix: Drain the potatoes thoroughly to prevent watery mash. Add melted butter, warm milk or cream, and sour cream. Season the mixture with salt and pepper. Mash until smooth and creamy but avoid overmixing to prevent a gluey texture.
Assemble the Casserole: Grease your casserole dish and spread half of the mashed potatoes evenly at the bottom. Sprinkle half of the shredded cheese and optional bacon bits on top to create flavorful layers. Cover with the remaining mashed potatoes and finish by sprinkling the remaining cheese evenly over the top.
Bake to Perfection: Preheat the oven to 350°F (175°C). Bake the casserole for 25 to 30 minutes or until the cheese is melted, bubbly, and golden brown on the surface.

Notes

Use warm milk or cream before adding to potatoes to keep them silky and smooth.
Do not overmix the potatoes to avoid a gummy texture.
Choose starchy potatoes like Russets or Yukon Golds for best creaminess.
Layer cheese and bacon bits evenly to ensure rich flavor in every bite.
Let the casserole rest a few minutes after baking for easier serving and better texture.

Nutrition

Serving Size: 1 cup
Calories: 320 kcal
Sugar: 2 g
Sodium: 450 mg
Fat: 18 g
Saturated Fat: 10 g
Unsaturated Fat: 6 g
Trans Fat: 0.2 g
Carbohydrates: 30 g
Fiber: 3 g
Protein: 10 g
Cholesterol: 55 mg