Cheesy Hash Brown Casserole

Featured in: Seasonal & Holiday Recipes

This hearty casserole unites tender hash browns with sharp cheddar, a creamy blend of sour cream and butter, plus a touch of onion and garlic for depth. Everything comes together in one dish, topped with buttery cornflakes for a craveable crunch. After a hands-off bake, it emerges golden and bubbling—perfect to pair with main courses for holidays or any comfort meal. Let it rest briefly before serving for easy slicing and the best texture. Easily customize with your favorite mix-ins like scallions or bacon for extra flavor.

Updated on Wed, 25 Mar 2026 12:04:43 GMT
Cheesy Hash Brown Casserole with golden cornflake topping, bubbling and hot from the oven. Save
Cheesy Hash Brown Casserole with golden cornflake topping, bubbling and hot from the oven. | aeroskillet.com

Indulge in the ultimate comfort food with this Cheesy Hash Brown Casserole. This creamy, golden-baked dish combines tender shredded potatoes with a rich blend of sharp cheddar and sour cream, making it a beloved staple for family gatherings and a perfect side dish for a festive Easter meal.

Cheesy Hash Brown Casserole with golden cornflake topping, bubbling and hot from the oven. Save
Cheesy Hash Brown Casserole with golden cornflake topping, bubbling and hot from the oven. | aeroskillet.com

Beyond its incredible flavor, this casserole is prized for its ease of preparation. By mixing simple pantry staples with savory aromatics like onion and garlic, you create a dish that tastes like it spent hours in the kitchen, though it only takes minutes to assemble.

Ingredients

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  • Potatoes: 1 (30 oz / 850 g) bag frozen shredded hash browns, thawed
  • Dairy: 2 cups (200 g) shredded sharp cheddar cheese, 1 cup (240 ml) sour cream, 1/2 cup (115 g) unsalted butter (melted), 1 cup (240 ml) whole milk
  • Aromatics: 1 small onion (finely chopped), 2 cloves garlic (minced)
  • Condiments & Seasonings: 1 can (10.5 oz / 300 g) condensed cream of mushroom soup, 1 teaspoon salt, 1/2 teaspoon black pepper
  • Topping: 1 1/2 cups (90 g) cornflakes (lightly crushed), 2 tablespoons unsalted butter (melted)

Instructions

Step 1
Preheat the oven to 350°F (175°C). Grease a 9x13-inch (23x33 cm) baking dish.
Step 2
In a large bowl, combine the thawed hash browns, cheddar cheese, sour cream, melted butter, milk, onion, garlic, cream of mushroom soup, salt, and pepper. Mix until well blended.
Step 3
Spread the mixture evenly in the prepared baking dish.
Step 4
In a small bowl, toss the crushed cornflakes with 2 tablespoons melted butter. Sprinkle evenly over the casserole.
Step 5
Bake for 45–50 minutes, until the top is golden and bubbling and the center is hot.
Step 6
Let rest 5–10 minutes before serving.

Zusatztipps für die Zubereitung

Allow the casserole to rest for at least 5 to 10 minutes after baking. This resting period is crucial as it helps the sauce thicken and set, ensuring each serving is perfectly creamy rather than runny.

Varianten und Anpassungen

For extra flavor, you can stir in 1/2 cup of chopped scallions or cooked, crumbled bacon. If you prefer a different base flavor, substitute the cream of mushroom soup with cream of chicken soup.

Serviervorschläge

This cheesy bake is a wonderful companion to a honey-glazed baked ham or a platter of roasted seasonal vegetables, making it an ideal choice for a hearty holiday meal.

Creamy, cheesy shredded potato bake with savory onion and garlic, baked until perfectly tender. Save
Creamy, cheesy shredded potato bake with savory onion and garlic, baked until perfectly tender. | aeroskillet.com

With its bubbling cheese and satisfying crunch, this Cheesy Hash Brown Casserole is bound to become a requested favorite for every special occasion and cozy dinner alike.

Recipe Q&A

What type of potatoes work best?

Frozen shredded hash browns are convenient and provide the right texture, but freshly grated potatoes also work if thoroughly drained.

Can I substitute cream of mushroom soup?

Yes, cream of chicken soup or other creamy canned soups can replace mushroom soup depending on personal preference.

How do I achieve a crispy topping?

Mixing crushed cornflakes with melted butter and evenly distributing over the top ensures a flavorful, golden crunch after baking.

Is this suitable for vegetarians?

Yes, this dish suits a vegetarian diet if the canned soup is free from meat ingredients.

Can I make this ahead of time?

You can assemble the casserole up to a day in advance and refrigerate, baking just before serving for best results.

What dishes pair well with this?

This dish complements mains like baked ham or roast vegetables, making it ideal for holiday or potluck spreads.

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Cheesy Hash Brown Casserole

Rich hash browns baked with cheddar, sour cream, and a buttery cornflake topping for comforting flavor.

Prep Duration
15 minutes
Time to Cook
50 minutes
Total Duration
65 minutes
Created by Brooke Williams


Skill Level Easy

Cuisine American

Makes 8 Portions

Diet Info Vegetarian-Friendly

What You'll Need

Potatoes

01 1 bag (30 oz) frozen shredded hash browns, thawed

Dairy

01 2 cups shredded sharp cheddar cheese
02 1 cup sour cream
03 1/2 cup unsalted butter, melted
04 1 cup whole milk

Aromatics

01 1 small onion, finely chopped
02 2 cloves garlic, minced

Condiments & Seasonings

01 1 can (10.5 oz) condensed cream of mushroom soup
02 1 teaspoon salt
03 1/2 teaspoon black pepper

Topping

01 1 1/2 cups cornflakes, lightly crushed
02 2 tablespoons unsalted butter, melted

How-To Steps

Step 01

Prepare the Oven and Baking Dish: Preheat oven to 350°F. Grease a 9x13-inch baking dish.

Step 02

Combine Main Ingredients: In a large bowl, mix thawed hash browns, cheddar cheese, sour cream, melted butter, whole milk, chopped onion, minced garlic, cream of mushroom soup, salt, and black pepper until thoroughly combined.

Step 03

Fill the Baking Dish: Evenly spread the potato mixture into the prepared dish using a spatula.

Step 04

Mix and Add Topping: In a small bowl, toss crushed cornflakes with 2 tablespoons melted butter, then sprinkle evenly over the surface.

Step 05

Bake until Golden and Bubbling: Bake for 45 to 50 minutes, or until the top is golden brown and bubbling and the center is hot.

Step 06

Rest Before Serving: Allow casserole to rest 5 to 10 minutes before serving for easier slicing.

Equipment Needed

  • Large mixing bowl
  • 9x13-inch baking dish
  • Small mixing bowl
  • Measuring cups and spoons
  • Spatula or large spoon

Allergy Notice

Check every product used for allergens. If you're unsure, talk to a healthcare provider.
  • Contains milk, cheese, butter, and cream (dairy); contains wheat (in condensed soup and possibly cornflakes). Check product labels for gluten and soy if using packaged ingredients.

Nutrition Details (for each serving)

Nutritional values are general and not a substitute for professional medical counsel.
  • Energy: 340
  • Fats: 20 g
  • Carbohydrates: 30 g
  • Proteins: 8 g

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