Hash Brown Casserole Recipe: Easy Cheesy Bake

This Hash Brown Casserole Recipe combines frozen shredded potatoes, creamy sauce, cheddar cheese, and a short baking time. The result is a tender, crisp-edged casserole that works for breakfast, brunch, or a simple family supper. Because the ingredients can be assembled in advance, this dish is useful for holidays, weekend meals, and mornings when cooking several separate items is impractical.

Essential Concepts

• Use thawed, well-drained hash browns for the best texture.
• Mix potatoes with sour cream, condensed soup, seasonings, and cheese.
• Bake covered first, then uncovered, until hot and golden.
• Prepare the casserole up to one day ahead and refrigerate it.
• Store leftovers for up to four days.

Hash Brown Casserole Recipe

Yield and timing

• Serves: 8
• Preparation time: 15 minutes
• Baking time: 50 to 60 minutes
• Total time: About 1 hour and 15 minutes

Ingredients

• 1 package frozen shredded hash browns, 30 ounces or 850 grams, thawed
• 1 can condensed cream of chicken soup, 10.5 ounces or 298 grams
• 1 cup sour cream, 8 ounces or 227 grams
• 1/2 cup unsalted butter, melted, 4 ounces or 113 grams
• 2 cups shredded sharp cheddar cheese, 8 ounces or 227 grams, divided
• 1/2 cup finely diced yellow onion, about 75 grams
• 1 teaspoon kosher salt, about 5 grams
• 1/2 teaspoon black pepper, about 1 gram
• 1/2 teaspoon garlic powder, about 1.5 grams
• 1/2 teaspoon smoked paprika, about 1 gram
• 1/2 cup crushed cornflakes, about 15 grams, optional
• 1 tablespoon melted butter, 14 grams, for the topping if using cornflakes

Equipment

• 9-by-13-inch baking dish, approximately 23-by-33 centimeters
• Large mixing bowl
• Spatula or large spoon
• Aluminum foil

Instructions

1. Heat the oven to 350°F (175°C). Lightly grease a 9-by-13-inch baking dish.

2. Place the thawed hash browns in a clean kitchen towel or several layers of paper towel. Press gently to remove excess moisture. This step helps prevent a watery casserole.

3. In a large bowl, stir together the condensed soup, sour cream, melted butter, salt, black pepper, garlic powder, and smoked paprika. Add the diced onion and 1 1/2 cups of the shredded cheddar cheese.

4. Add the hash browns and fold until the potatoes are evenly coated. Work gently so the shreds retain their shape.

5. Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining 1/2 cup cheddar over the surface.

6. For a crisp topping, combine the crushed cornflakes with 1 tablespoon melted butter. Scatter the mixture over the cheese.

7. Cover the dish with foil and bake for 35 minutes. Remove the foil and continue baking for 15 to 25 minutes, until the edges bubble, the center is hot, and the top is lightly browned.

8. Let the casserole rest for 10 minutes before serving. This short rest allows the sauce to thicken and makes the portions easier to serve.

Why the Recipe Works

Hash browns contain considerable water, especially after freezing. Thawing them and pressing out excess moisture prevents the casserole from becoming loose. The condensed soup supplies body, while sour cream adds acidity and a smooth texture. Butter coats the potatoes and supports browning. Sharp cheddar provides a stronger cheese flavor than mild cheddar, so a moderate amount is enough for the entire dish.

Covering the casserole during the first part of baking traps steam and heats the potatoes evenly. Removing the foil near the end allows moisture to escape and gives the cheese and cornflake topping time to brown. A brief resting period is also useful because the sauce continues to set after the dish leaves the oven. For another tested approach to this classic dish, see this guide to preparing hash brown casserole.

Fresh or Frozen Hash Browns

Frozen shredded hash browns are convenient and produce consistent results. They should be thawed before mixing. A refrigerator thaw overnight is the most reliable method, although the potatoes can also be spread on a baking sheet at room temperature for about 30 to 45 minutes.

Freshly grated potatoes can be used, but they need extra preparation. Rinse the shreds in cold water, drain them well, and press them dry. Fresh potatoes may release more starch and moisture, which can change the final texture. Frozen potatoes are generally preferable for this casserole because their size and moisture level are more predictable.

Make-Ahead Instructions

Assemble the casserole through step five, then cover it tightly and refrigerate it for up to 24 hours. Add the cornflake topping just before baking if you want it to remain crisp. For another convenient morning bake, try these easy overnight breakfast casserole recipes.

A cold casserole usually needs an additional 10 to 15 minutes in the oven. Bake it covered until the center is hot, then uncover it and continue baking until the top is golden. Do not place a very cold glass baking dish directly into a hot oven because a sudden temperature change can cause the glass to break. Use a metal dish, or allow a refrigerated glass dish to sit at room temperature for about 20 minutes before baking.

Variations

For a meatier breakfast, add 1 cup of cooked, crumbled breakfast sausage, approximately 170 grams. Drain the sausage well before mixing it with the potatoes. Cooked diced ham also works well.

To include vegetables, stir in 1 cup of sautéed mushrooms, chopped bell pepper, or spinach. Cook vegetables first and remove excess moisture. Raw vegetables can release water and make the casserole soft.

For a sharper flavor, replace half of the cheddar with Monterey Jack, Colby, or pepper Jack. If using pepper Jack, reduce or omit the black pepper according to taste. A tablespoon of chopped parsley or green onion can be added after baking for freshness and color.

Storage and Reheating

Cool leftovers within two hours and place them in a covered container. Refrigerate for up to four days. Reheat individual portions in the microwave until steaming hot, or place several portions in a 350°F (175°C) oven until warmed through.

The casserole can also be frozen after baking. Cool it completely, divide it into portions, and wrap each portion tightly. Freeze for up to two months for the best quality. Thaw overnight in the refrigerator before reheating. The topping may be softer after freezing, but the flavor remains satisfactory.

Frequently Asked Questions

Can hash brown casserole be made without condensed soup?

Yes. Replace the soup with 1 1/2 cups of thick white sauce. To make one, melt 3 tablespoons butter, whisk in 3 tablespoons all-purpose flour, and gradually add 1 1/2 cups milk. Cook until thick, then season with salt and pepper. Cool the sauce slightly before mixing it with the other ingredients.

Why is my hash brown casserole watery?

The potatoes may not have been drained well, or the dish may contain watery vegetables. Thaw the hash browns completely and press them dry before mixing. If adding vegetables, sauté them until most of their moisture has evaporated.

Can I use diced hash browns instead of shredded potatoes?

Yes. Diced hash browns produce a different texture but work with the same method. They may need a few extra minutes of baking if the pieces are large.

Can I prepare this casserole without onions?

Yes. Omit the onion or replace it with 1/2 teaspoon onion powder. Onion powder distributes more evenly than raw onion and does not add extra moisture.

How do I know when the casserole is done?

The center should be hot, the edges should bubble gently, and the cheese should be melted. For a precise check, the center should reach at least 165°F (74°C), especially if the casserole contains meat or has been refrigerated before baking.

What should be served with hash brown casserole?

Serve it with scrambled or fried eggs, fresh fruit, roasted tomatoes, or a green salad. Since the casserole is rich and filling, acidic or fresh side dishes provide useful contrast.