Crispy, Cheesy Shredded Potato Casserole

This shredded potato casserole bakes into a golden, cheesy side that feels right on a holiday spread but is simple enough for a weeknight roast. It is creamy without a can of soup, and the top gets so crisp it shatters under a spoon.

The whole thing comes together in one bowl after a quick stovetop sauce. It is the kind of dish that disappears fast, with people scraping the corners of the pan.

Why This Casserole Works

I keep this one close because it gives you two textures in every bite. The edges and top bake into a deep golden crust, while the shredded potatoes underneath stay tender and lush with sharp cheddar and tangy sour cream.

That contrast makes it feel special even though the ingredient list is short. It pairs with almost any main and reheats well enough that I look forward to lunch the next day.

Ingredients

• 1/4 cup unsalted butter: plus an extra tablespoon cut into small bits for dotting the top
• 1/4 cup all-purpose flour: levels out the sauce
• 1 1/2 cups whole milk: 2% works but the sauce will be slightly thinner
• 1 teaspoon fine sea salt: plus more if your cheese is mild
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/4 teaspoon freshly ground black pepper
• 1 cup full-fat sour cream: brings tang and body
• 2 cups (8 oz) shredded sharp cheddar cheese: divided, use a block you shred yourself for the smoothest melt
• 1 (30-oz) bag frozen shredded hash browns: thaw completely before using
• 2 tablespoons chopped fresh chives: for serving, optional

Variations / Substitutions

• Add smoky protein: fold in 1 cup diced ham or crumbled cooked bacon before baking.
• Go dairy-free: swap the butter for plant butter, use oat milk, and choose a good melting vegan cheddar and sour cream.
• Softer herb flavor: stir a tablespoon of finely chopped fresh dill into the sauce instead of chives at the end.
• Extra crunch: mix 1/2 cup crushed cornflakes with a tablespoon of melted butter and scatter over the cheese before baking.

Try this same sauce with classic scalloped potatoes when you want a more elegant presentation.

How to Make Shredded Potato Casserole

Step 1: Build the Sauce

Preheat the oven to 350°F (180°C). Melt the 1/4 cup butter in a medium saucepan over medium heat. Once it stops foaming, whisk in the 1/4 cup flour and cook, stirring constantly, for about 1 minute so the raw flour taste cooks out.

The mixture will look pale gold and a little bubbly. Slowly pour in the 1 1/2 cups milk while whisking, then bring it to a gentle simmer. Cook for 2 to 3 minutes, whisking often, until the sauce thickens enough to coat the back of a spoon. Remove from the heat and stir in the salt, garlic powder, onion powder, black pepper, and 1 cup of the shredded cheddar. Stir until the cheese melts completely, then fold in the sour cream.

Step 2: Toss with the Potatoes

Tip the thawed shredded hash browns into a large mixing bowl, pouring off any water that collected at the bottom. Pour the warm cheese sauce over the top and fold everything together with a big spoon.

Stir for about a minute, until every shred looks evenly coated and the mixture holds together loosely. It will be thick, not soupy, which is exactly what you want for a crisp topping later.

Step 3: Fill the Baking Dish and Top

Butter a 9-by-13-inch baking dish lightly to prevent sticking. Scrape the potato mixture into the dish and spread it into an even layer with the back of your spoon. Sprinkle the remaining 1 cup of cheddar over the surface, then dot the cheese with the reserved bits of cold butter.

There is no second stir here, you are letting those top shreds sit right at the surface so they can brown directly under the heat.

Step 4: Bake Until Golden and Bubbly

Slide the dish onto the center rack and bake for 50 to 55 minutes. By the end, the casserole should be deeply golden on top with bubbly edges that look almost fried.

If you want an even darker, crunchier top, switch the oven to broil for the last 2 minutes, but watch it closely so it does not go from golden to burnt.

Step 5: Finish and Serve

Pull the dish out and let it rest on a cooling rack for 10 minutes. This sets the sauce just enough that it slices into neat squares without running across the plate.

Scatter the fresh chives over the top right before carrying it to the table. Scoop it out while it is still hot enough for the cheese strands to stretch.

Tips for the Crispiest Casserole

• Thaw the hash browns completely and blot them gently with a clean towel. Extra water steams the casserole from the inside and softens the top.
• Use a block of sharp cheddar and shred it yourself. Pre-shredded cheese often has a coating that keeps it from melting as smoothly into the sauce.
• Let the top layer of cheese and potato shreds sit loosely. Pressing them down too firmly buries them under moisture and prevents browning.
• Broil for no more than 2 minutes at the very end. This blisters the top without drying out the middle.

Bake times by dish size:

Storing Leftover Casserole

Refrigerate any leftovers in a covered dish for up to 4 days. Reheat in a 350°F oven for 15 to 20 minutes to bring the top back to life, a microwave will soften the crust.

What Goes Well with Shredded Potato Casserole

The creamy, salty potatoes cut through the sweet lacquer of a brown sugar glazed ham or the sticky edges of meatloaf. They also balance the char on a simple roast chicken, soaking up the pan juices.

Frequently Asked Questions

Can I shred fresh potatoes instead of using frozen?

Yes, peel and grate 2 pounds of russets, then rinse and squeeze them completely dry in a towel. The bake time stays the same.

Do I need to cook the sauce before mixing?

Yes, the minute or two on the stove cooks the flour taste out and thickens the milk so the casserole does not turn watery.

Can I assemble this the night before?

Assemble through Step 3, cover, and refrigerate overnight. Add 10 to 15 minutes to the bake time, starting from cold, and watch the top for browning.

How do I make it for a larger crowd?

Double the ingredients, use the deepest 9-by-13-inch dish you have or two standard dishes, and bake for about 65 to 70 minutes.

Shredded Potato Casserole Recipe

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 55 minutes mins

Total Time 1 hour hr 15 minutes mins

Servings: 8 servings

Calories: 320

Ingredients Method Notes

Ingredients

  

• 1/4 cup unsalted butter, plus 1 tablespoon for dotting
• 1/4 cup all-purpose flour
• 1 1/2 cups whole milk
• 1 teaspoon fine sea salt
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/4 teaspoon black pepper
• 1 cup full-fat sour cream
• 2 cups shredded sharp cheddar cheese, divided
• 1 (30-oz) bag frozen shredded hash browns, thawed
• 2 tablespoons chopped fresh chives (optional)

Method

 

1. Preheat oven to 350°F. Melt 1/4 cup butter in a saucepan over medium heat, whisk in flour, and cook 1 minute. Slowly whisk in milk, bring to a simmer, and cook 2-3 minutes until thickened. Off heat, stir in salt, garlic powder, onion powder, pepper, and 1 cup of the cheddar until melted, then fold in sour cream.
2. Place thawed hash browns in a large bowl, pour the sauce over, and fold until evenly coated.
3. Butter a 9×13-inch dish, spread the potato mixture evenly, top with remaining 1 cup cheddar, and dot with the 1 tablespoon cold butter.
4. Bake 50-55 minutes until deeply golden and bubbly at the edges.
5. Rest 10 minutes, scatter chives on top, and serve hot.

Notes

Make sure the hash browns are fully thawed and drained so the casserole doesn’t steam. If you like things extra tangy, use a full-fat Greek yogurt in place of the sour cream. Letting the dish rest after baking is the difference between a clean scoop and a loose spoonful.