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Cheesy Potato Casserole – Creamy, Comforting Side Dish Recipe

Updated: Dec 24, 2025


Golden cheesy potato gratin in a baking dish on a rustic wooden table, with a slice missing. Sour cream and herbs in the background.

This easy Cheesy Potato Casserole is creamy, golden, and full of cozy flavor. Shredded potatoes are baked in a rich mixture of sour cream, cheese, and butter, then topped with crispy breadcrumbs (or cornflakes!) for the perfect crunch. It’s a timeless comfort dish that everyone loves — from holiday tables to Sunday suppers. Love cheesy comfort food? Try our Neiman Marcus Chicken Casserole or Cowboy Mashed Potato Casserole for another creamy favorite — and don’t miss our Crack Dip for the perfect party side.

Ingredients

  • 1 (30 oz) bag frozen shredded hash brown potatoes, thawed

  • 1 can (10.5 oz) cream of chicken soup (or cream of mushroom for vegetarian)

  • 1 cup sour cream

  • 2 cups shredded cheddar cheese (divided)

  • ½ cup melted butter

  • ½ cup chopped onion (optional)

  • Salt and pepper, to taste

For topping:

  • 1 ½ cups crushed cornflakes or breadcrumbs

  • 2 tablespoons melted butter

Instructions

  1. Preheat the oven to 350°F. Grease a 9x13-inch baking dish.

  2. Mix the filling: In a large bowl, combine thawed hash browns, cream of chicken soup, sour cream, 1½ cups cheese, melted butter, and onion (if using). Season with salt and pepper.

  3. Spread in pan: Pour the mixture evenly into the prepared baking dish. Smooth the top with a spatula.

  4. Add the topping: Mix crushed cornflakes (or breadcrumbs) with melted butter. Sprinkle evenly over the casserole.

  5. Bake: Bake uncovered for 45–50 minutes, until the top is golden and the casserole is bubbly around the edges.

  6. Add extra cheese (optional): For extra cheesiness, sprinkle the remaining ½ cup of cheese over the top during the last 5 minutes of baking.

  7. Serve: Cool slightly before serving. Enjoy the creamy center and crunchy topping!

Tips & Variations

  • Add cooked bacon or ham for a hearty twist.

  • Substitute Greek yogurt for sour cream for a lighter version.

  • Use sharp cheddar, Colby Jack, or Gruyère for extra flavor.

  • Double the recipe for larger gatherings — it disappears fast!

FAQ

Q: Can I use frozen hash browns instead of fresh potatoes? Yes — frozen shredded or diced hash browns work perfectly and save time.

Q: Can I add meat to this casserole? Absolutely. Bacon, ham, or cooked sausage all make delicious additions.

Q: How do I keep the casserole from becoming watery? Make sure your potatoes are thawed and patted dry if using frozen. Avoid covering tightly while baking.

Q: Can I make this ahead of time? Yes — assemble it 24 hours ahead, refrigerate, and bake when ready.

Q: Can I freeze cheesy potato casserole? Yes. It freezes well before or after baking. Thaw in the fridge overnight and reheat covered.

Final Thoughts

Cheesy Potato Casserole is the definition of cozy comfort food. Creamy, rich, and loaded with melty cheese, it’s the kind of side dish that steals the spotlight at holidays, potlucks, and family dinners. Easy to prepare and always a crowd-pleaser, this casserole pairs perfectly with everything from ham to roast chicken. If you’re looking for a classic, hearty dish that delivers warmth and flavor in every bite, Cheesy Potato Casserole is one you’ll make again and again.

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