Baked Potato Casserole

Instructions

1. Prepare Your Station

Preheat your oven to 350°F (175°C). Lightly grease a standard 9x13-inch baking dish with cooking spray or a pat of butter to prevent sticking.

2. Whisk the Creamy Binder

In a large mixing bowl, combine the condensed cream of chicken soup, sour cream, the first half of the melted butter (1/4 cup), finely diced yellow onion, garlic powder, salt, and pepper. Whisk the mixture vigorously until it is completely smooth, uniform, and aromatic. Once smooth, stir in the shredded cheddar cheese.

3. Fold in the Potatoes

Dump your thawed hash browns directly into the bowl with the cheesy sauce. Using a sturdy spatula, gently fold the potatoes until every single shred is thoroughly cloaked in the mixture. Transfer the combined potatoes into your prepared baking dish, smoothing the top into an even layer.

4. Create the Crispy Crust

In a separate, smaller bowl, toss your gently crushed cornflakes with the remaining 1/4 cup of melted butter until the flakes glisten evenly. Sprinkle this mixture uniformly across the top of the potato layer, covering it completely from edge to edge.

5. Bake to Golden Perfection

Pop the casserole into the oven, uncovered, for 45 to 50 minutes. You’ll know it’s ready when the edges are bubbling vigorously, the potato center is tender, and the cornflake topping has transformed into a gorgeous, crispy golden brown. Let it rest on the counter for about 5 to 10 minutes before serving so it sets beautifully.

Make-Ahead and Variation Tips

This dish is a host's dream because it handles advance preparation beautifully. You can fully assemble the potato and soup mixture in the baking dish the night before, cover it tightly with foil, and store it in the refrigerator. To keep the topping from getting soggy, simply add the fresh, buttery cornflakes right before it goes into the oven, adding about 5 to 10 minutes to the total baking time to account for the chill.

If you want to transform this side dish into a complete, one-pan weeknight meal, you can easily fold in two cups of diced leftover ham or shredded rotisserie chicken before baking.

What is your family’s ultimate go-to topping for a classic potato casserole? Do you stick to traditional cornflakes, or do you prefer the buttery crunch of crushed crackers? Let me know in the comments below