Comfort food doesn’t get better than this rich, bubbly, Easy Cheesy Potato Casserole with a crunchy corn flake topping.
Tie on your apron and get ready to make a dish that’s creamy, cheesy, crunchy, and almost impossible to stop eating. This easy cheesy potato casserole is pure, unfiltered comfort food bliss—the kind that makes your kitchen smell amazing and has everyone wandering in asking, “Is it ready yet?” It’s loaded with grated potatoes, tangy sour cream, scallions, and a savory chicken-and-mushroom soup base, all bound together with plenty of melty cheddar.
And just when you think it can’t get better, you crown the whole thing with a buttery, crunchy corn flake topping (with more cheesiness thanks to Parmesan) that bakes into a golden top you’ll want to steal forkfuls from the moment it comes out of the oven. It’s nostalgic in the best way, like something your favorite aunt brought to every holiday dinner.
For best results, grate—don’t chop—the potatoes so they cook evenly and melt right into the creamy base. Keep them under cold water until you’re ready to use them (this prevents browning), and be sure to squeeze out any excess moisture so your casserole bakes up with the best texture possible. And yes, you can absolutely take a shortcut and use frozen shredded hash browns; they work great when you’re pressed for time.
Tasty twists
Like most casseroles, this dish is flexible, making it perfect for riffing based on your mood or whatever you’ve got in the fridge. To go vegetarian, simply swap the chicken and mushroom soup for mushroom or celery soup. Craving a little heat? Fold in chopped jalapeños or a pinch of chili powder. If you want to turn this side into a hearty main, add cooked chicken, bacon, or ham for a protein boost that makes every scoop extra satisfying. Mix crushed crackers or panko breadcrumbs into the corn flake topping for added texture. Stir in caramelized onions or roasted garlic to add depth of flavor, or add thawed peas for pops of color. And for an ultra-rich version, swap some of the cheddar for Gruyère or smoked mozzarella to give the whole dish a more complex, savory finish.
How do I store leftovers?
Store any cooled leftovers in an airtight container in the refrigerator for up to 4 days. When you’re ready to reheat, warm individual portions in the microwave in 30-second bursts until heated through, or reheat a larger portion in the oven at 350°F for about 15 minutes.
This casserole also freezes surprisingly well. To freeze, let it cool completely, then wrap it tightly in plastic wrap and foil, or transfer portions to freezer-safe containers. It will keep for up to 2 months. Thaw overnight in the fridge before reheating. For best texture, reheat in the oven at 350°F until hot and bubbly—the topping should crisp back up nicely.
Serving suggestions
Pair this easy cheesy potato casserole with Oven-Baked BBQ Chicken, Instant Pot Pork Chops, or Salisbury Steak for the ultimate comfort-food spread. It’s also great alongside holiday mains like glazed ham or prime rib. For something lighter, serve it with crisp Antipasto Salad to balance the richness.
If you loved this easy, cheesy recipe, try some of my other favorites like Cheesy Potato Soup, Cheesy Asparagus, Cheesy Corn Pudding With A Kick, or Easy Cheesy Mexican Rice.
Easy Cheesy Potato Casserole
Ingredients
- 2 cups sour cream
- 1 cup chicken and mushroom soup
- 2 cups cheddar cheese shredded
- 1/2 cup scallions thinly sliced
- Salt and pepper
- 4 cups potatoes grated
- 2 cups corn flakes
- 1/4 cup salted butter melted
- 1/4 cup Parmesan cheese grated
Instructions
- Preheat the oven to 350°F.
- Combine the sour cream, chicken and mushroom soup, cheddar cheese, scallions, salt, and pepper in a large bowl and mix until well combined. Stir in the grated potatoes.
- Pour the potato mixture into a casserole dish.
- Combine the corn flakes, melted butter, Parmesan, and a pinch of salt and pepper in a medium bowl, then sprinkle on top of the potato mixture. Bake for 1 hour, or until the casserole is bubbling and the potatoes are cooked through.
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