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Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic

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Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic is the kind of dish that instantly makes a meal feel special. Warm, rich, and deeply satisfying, this casserole combines tender shredded potatoes with a velvety cheese sauce and a bubbly golden top that pulls everyone to the table. It is comforting, familiar, and always a guaranteed crowd-pleaser.

This is the recipe you reach for when you want something reliable and cozy. It works just as beautifully for holiday dinners and Sunday brunch as it does for a simple weeknight meal. Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic delivers big flavor with straightforward ingredients and a method that feels approachable even for beginner cooks.

I started making this casserole during colder months when comfort food felt essential. It became one of those recipes that people asked for again and again. Every time it came out of the oven, bubbling and golden, it disappeared faster than anything else on the table. Over time, it became a tradition, tied to family gatherings, shared laughter, and plates scraped clean.

A rich and creamy hashbrown casserole loaded with cheese, onions, and garlic, baked until bubbly and golden.
Course: Side Dish
Cuisine: American
Calories: 360

Ingredients
  

  • 30 oz frozen shredded hash brown potatoes, thawed
  • 2 tbsp olive oil
  • 1 yellow onion, diced
  • 3 cloves garlic, minced
  • 1/4 cup all-purpose flour
  • 2 cups whole milk
  • 1 cup chicken stock
  • 1 cup sour cream
  • 8 oz sharp cheddar cheese, shredded
  • 1 1/2 tbsp parsley, minced
  • salt, to taste
  • black pepper, to taste
  • 1 cup sharp cheddar cheese, shredded (for topping)

Equipment

  • 9x13 casserole dish
  • saucepan
  • mixing bowl

Method
 

  1. Preheat oven to 375°F and grease a 9×13 casserole dish.
  2. Heat olive oil in a saucepan. Sauté onion until soft, then add garlic.
  3. Stir in flour and cook briefly. Slowly whisk in milk and chicken stock until thickened.
  4. Remove from heat and stir in sour cream, shredded cheese, parsley, salt, and pepper.
  5. Mix sauce with hashbrowns and spread into prepared dish. Top with remaining cheese.
  6. Bake 40–45 minutes until bubbly and golden. Rest briefly before serving.

Nutrition

Calories: 360kcalCarbohydrates: 28gProtein: 10gFat: 24gSaturated Fat: 13gPolyunsaturated Fat: 2gMonounsaturated Fat: 7gCholesterol: 65mgSodium: 520mgPotassium: 480mgFiber: 2gSugar: 5gVitamin A: 12IUVitamin C: 8mgCalcium: 22mgIron: 10mg

Notes

Thaw hashbrowns fully for best texture. Let rest before serving.

Tried this recipe?

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Why This Hashbrown Casserole Always Wins

Comfort Food at Its Best

Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic hits all the right notes. The potatoes are tender without being mushy. The sauce is creamy without feeling heavy. The cheese adds richness and depth, while onions and garlic bring warmth and balance.

Because the flavors are familiar and comforting, this dish appeals to all ages. It is especially popular with picky eaters who love its simple, cheesy goodness.

Flexible and Reliable

This casserole is incredibly versatile. It can be served for breakfast with eggs, as a brunch centerpiece, or as a hearty side dish at dinner. It pairs well with everything from roasted meats to fresh salads.

It is also easy to make ahead, transport, and reheat, making it ideal for potlucks and gatherings.

Ingredient Breakdown and Helpful Tips

Hashbrown Potatoes

Frozen shredded hashbrowns are the backbone of this recipe. Thaw them fully before using and squeeze out excess moisture if needed. This helps prevent a watery casserole.

Building the Creamy Sauce

Olive oil is used to sauté onions and garlic, building a savory base. Flour thickens the sauce, while milk and chicken stock create a smooth, flavorful foundation.

Sour cream adds tang and creaminess, balancing the richness of the cheese.

Choosing the Right Cheese

Sharp cheddar is ideal because it melts well and provides bold flavor. Using part of the cheese inside the casserole and part on top ensures a creamy interior and a beautifully browned finish.

Seasoning for Balance

Parsley adds freshness, while salt and black pepper enhance flavor without overpowering the dish.

Step-by-Step Method Explained

Preparing the Sauce

Heat olive oil in a saucepan and sauté diced onion until soft and lightly golden. Add garlic and cook briefly until fragrant.

Sprinkle in flour and cook for a minute to remove any raw taste. Slowly whisk in milk and chicken stock, allowing the sauce to thicken gently.

Stir in sour cream and shredded cheese until smooth. Season with salt, pepper, and parsley.

Assembling the Casserole

Combine the thawed hashbrowns with the cheese sauce in a large bowl. Stir until evenly coated.

Transfer the mixture to a greased casserole dish and spread it evenly. Sprinkle remaining cheese over the top.

Baking to Golden Perfection

Bake until the casserole is hot, bubbly, and golden on top. The edges should be slightly crisp while the center remains creamy.

Let the casserole rest briefly before serving to allow it to set.

Serving Ideas and Pairings

Perfect Occasions

Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic shines at holiday dinners, brunches, and family meals. It is equally welcome at potlucks and casual gatherings.

What to Serve With It

Serve alongside roasted chicken, ham, or turkey. For breakfast or brunch, pair with eggs and fresh fruit. A crisp green salad helps balance the richness.

Make-Ahead, Storage, and Reheating Tips

Making It Ahead

Assemble the casserole up to a day in advance, cover tightly, and refrigerate. Bake just before serving.

Storing Leftovers

Store leftovers in an airtight container in the refrigerator for up to four days.

Reheating Without Drying

Reheat covered in the oven or microwave until warmed through. Add a splash of milk if needed to restore creaminess.

Variations to Try

Extra Crunch

Top the casserole with buttered breadcrumbs or crushed crackers before baking for added texture.

Add-Ins

Stir in cooked bacon, ham, or sautéed mushrooms for extra flavor.

Lighter Option

Use reduced-fat milk and sour cream while keeping the same method.

Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic adapts easily while staying true to its comforting roots.

Common Mistakes and How to Avoid Them

Skipping the Thaw

Using frozen hashbrowns straight from the freezer can lead to excess moisture. Always thaw first.

Overcooking the Sauce

Cook the sauce gently to avoid a grainy texture. Low and steady heat works best.

Attention to these details ensures a smooth, creamy result.

Frequently Asked Questions

Can I use diced hashbrowns instead?
Yes, but the texture will be slightly different.

Is this casserole freezer-friendly?
Yes, freeze before baking for best results.

Can I make it gluten-free?
Use a gluten-free flour blend for thickening.

Does it reheat well?
Yes, it reheats beautifully with minimal texture change.

Can I add vegetables?
Yes, bell peppers or spinach work well.

Conclusion

Creamy, Cheesy Hashbrown Casserole – A Comfort Food Classic is everything a comforting dish should be. Rich, creamy, and deeply satisfying, it brings people together and fills the table with warmth. Easy to prepare and endlessly versatile, this casserole earns its place as a timeless favorite you will come back to again and again.

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