Name: Mouthwatering Mashed Potato Casserole
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 5 large russet potatoes; 4 tablespoons unsalted butter; 1 cup sour cream; 4 ounces cream cheese; 1/2 cup whole milk or heavy cream; 2 cups shredded cheddar cheese; 1 teaspoon salt; 1/2 teaspoon black pepper; 2 tablespoons chopped chives or green onions (optional)

If you crave creamy, cheesy comfort food that warms your soul with every bite, this Mouthwatering Mashed Potato Casserole is your next must-try dish. Perfectly whipped potatoes are layered with cheese, sour cream, and butter, then baked to golden, bubbly perfection. It’s an easy dinner idea that’s perfect for holidays, potlucks, or any cozy weeknight dinner.

Think of this as your favorite mashed potatoes all dressed up for a dinner party. It’s indulgent yet simple, making it an excellent side for just about anything from grilled meats to roast turkey. Plus, it’s a great make-ahead option, saving you time when entertaining or meal prepping.

What Kind of Potatoes Should I Use?

For the creamiest results, russet potatoes are the go-to. Their high starch content makes them ideal for mashing, resulting in a fluffy and smooth base. Yukon Golds also work wonderfully, adding a buttery texture and richer flavor. Avoid waxy potatoes like red or fingerlings, which can become gluey when mashed.

Ingredients for the Mouthwatering Mashed Potato Casserole

Russet Potatoes – The starchy foundation that yields a fluffy, creamy mash.
Butter – Adds richness and helps carry the other flavors beautifully.
Sour Cream – Brings tang and creaminess for that classic casserole comfort.
Cream Cheese – Ensures an ultra-smooth, velvety texture.
Whole Milk or Heavy Cream – Loosens up the mash to make it perfectly scoopable.
Shredded Cheddar Cheese – A gooey, melty layer that adds depth and cheesy goodness.
Salt and Pepper – Essential seasonings to enhance the potato base.
Chives or Green Onions (Optional) – For a fresh, savory finish on top.

How To Make the Mouthwatering Mashed Potato Casserole

Step 1: Boil and Mash the Potatoes

Peel and chop the potatoes into chunks. Boil them in salted water until fork-tender, about 15-20 minutes. Drain and mash while still warm.

Step 2: Add the Creamy Elements

Mix the hot mashed potatoes with butter, sour cream, cream cheese, and milk. Blend until smooth and creamy. Add salt and pepper to taste.

Step 3: Assemble the Casserole

Spread half of the mashed potatoes into a greased casserole dish. Sprinkle a generous layer of cheddar cheese, then top with the remaining potatoes. Add more cheese on top if desired.

Step 4: Bake Until Golden

Preheat your oven to 375°F (190°C). Bake uncovered for 25-30 minutes, or until the cheese is bubbling and the top is slightly golden.

Step 5: Garnish and Serve

Sprinkle with chopped chives or green onions just before serving for a burst of color and freshness.

Serving and Storing Mouthwatering Mashed Potato Casserole

This casserole is best served warm straight from the oven when the top is golden and the cheese is melty. If you have leftovers, store them in an airtight container in the refrigerator for up to 4 days. To reheat, warm in a 350°F oven covered with foil, or microwave individual portions until hot.

What to Serve With Mouthwatering Mashed Potato Casserole?

Herb-Roasted Chicken

The light seasoning of herb-roasted chicken pairs beautifully with the richness of this casserole.

BBQ Meatloaf

A savory, smoky meatloaf complements the creamy, cheesy goodness perfectly.

Garlic Butter Green Beans

For a fresh and crunchy contrast.

Creamy Mushroom Gravy

Pour this over the casserole for an indulgent touch.

Crisp Garden Salad

A refreshing way to balance the richness.

Classic Deviled Eggs

Perfect for holiday spreads alongside this hearty dish.

Want More Casserole Ideas?

If you love this mashed potato casserole, here are more crave-worthy options you might enjoy:

Chicken Crescent Roll Casserole for a flaky, creamy combo.
Hashbrown Chicken Casserole when you’re in the mood for crispy and creamy.
Runza Casserole packed with beef and cabbage flavor.
Crab Casserole for seafood lovers craving richness.
Slow Cooker Chicken and Dumplings for an effortless comfort meal.

Save This Pin For Later

Save this delicious idea to your favorite Pinterest board so it’s easy to find when you’re ready to whip it up again.

Tried it with a twist? Maybe a pinch of garlic powder or a handful of bacon bits? I’d love to hear how it turned out—drop your tips or questions in the comments below.

Need more inspiration? Explore my daily kitchen creations on Savor Queen on Pinterest. Your next favorite might be waiting there.

Mouthwatering Mashed Potato Casserole

Author: Julia Walton
Total Time: 50 minutes
Yield: 6 servings
Diet: Vegetarian

Print Recipe

Description

Get ready to elevate your dinner game with this Mouthwatering Mashed Potato Casserole! Creamy, cheesy, and oven-baked to golden perfection, this easy recipe is the perfect comfort food for cozy nights, special holidays, or family gatherings. Whipped russet potatoes are blended with sour cream, cream cheese, and cheddar, then baked into a warm, irresistible dish. Whether you need quick dinner ideas, holiday food inspiration, or a reliable side dish, this casserole delivers every time. It’s a go-to favorite in any collection of easy dinner ideas, hearty comfort meals, or savory food ideas.