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Cheesy Bacon Sour Cream Hash Brown Casserole: A Creamy, Golden-Baked Comfort Food

There is something irresistible about a casserole that combines crispy potatoes, creamy sour cream, smoky bacon, and plenty of melted cheese. This Cheesy Bacon Sour Cream Hash Brown Casserole brings all those comforting flavors together in one bubbling, golden dish. Shredded hash browns are folded into a rich, tangy sour cream mixture, layered with cheddar cheese and bacon bits, and baked until the edges turn beautifully golden and the cheese on top melts into a delicious, bubbly crust.

Perfect for a weekend breakfast, holiday brunch, family dinner, or cozy potluck, this casserole is easy to prepare and wonderfully satisfying. It uses simple ingredients but delivers layers of flavor in every bite.

Why You’ll Love This Hash Brown Casserole

This recipe is more than just baked potatoes. The sour cream gives the casserole a creamy texture and subtle tang, while cheddar adds a rich, savory flavor. Bacon brings a smoky, salty crunch, and the shredded potatoes create a hearty base that absorbs all the delicious flavors.

The best part is the contrast between the soft, creamy center and the golden, cheesy top. Once it comes out of the oven, the cheese is bubbling, the edges are lightly crisp, and the kitchen smells absolutely amazing.

Ingredients

For approximately 6–8 servings, you will need:

For the Casserole

1 bag (30 ounces) frozen shredded hash browns, thawed
1½ cups sour cream
2 cups shredded sharp cheddar cheese, divided
1 cup cooked bacon bits
½ cup mayonnaise
½ cup melted butter
1 small onion, finely chopped
1 teaspoon garlic powder
½ teaspoon onion powder
½ teaspoon smoked paprika
½ teaspoon salt, or to taste
½ teaspoon freshly ground black pepper
½ cup shredded mozzarella cheese, optional, for extra melting and stretch

For the Topping

½ cup shredded cheddar cheese
¼ cup cooked bacon bits
1 tablespoon chopped fresh parsley or green onions, optional

Step-by-Step Instructions

Step 1: Prepare the Hash Browns

Begin by thawing the frozen shredded hash browns completely. You can place them in the refrigerator overnight or allow them to thaw in a bowl in the refrigerator for several hours.

Once thawed, place the potatoes in a clean kitchen towel or several layers of paper towels. Gently squeeze out as much excess moisture as possible.

Why this matters: Frozen hash browns contain a considerable amount of water. If you skip this step, the casserole may turn out watery instead of creamy, and the potatoes may not develop a pleasant texture.

Set the prepared hash browns aside while you make the creamy mixture.

Step 2: Preheat the Oven

Preheat your oven to 375°F (190°C).

Lightly grease a 9-by-13-inch baking dish with butter or nonstick cooking spray. This prevents the casserole from sticking and makes serving easier.

For a slightly thicker casserole, you can use a smaller, deeper baking dish, but keep in mind that the baking time may need to increase.

Step 3: Prepare the Creamy Sour Cream Mixture

In a large mixing bowl, combine the sour cream, mayonnaise, and melted butter. Stir until the mixture is smooth and well blended.

Add the garlic powder, onion powder, smoked paprika, salt, and black pepper. Mix thoroughly so the seasonings are evenly distributed.

Stir in the finely chopped onion.

The sour cream provides a tangy, creamy foundation, while the butter adds richness. The mayonnaise helps create a smooth, velvety texture and contributes to the casserole’s golden finish.

Step 4: Add the Cheese and Bacon

Add 1½ cups of shredded cheddar cheese to the sour cream mixture, reserving the remaining cheese for the topping.

Stir in the cooked bacon bits and, if using, the shredded mozzarella cheese.

Mix until the cheese and bacon are evenly distributed throughout the creamy mixture.

For the best flavor, freshly shredded cheddar melts particularly well. Sharp cheddar also gives the casserole a stronger cheese flavor that balances beautifully with the mild potatoes and tangy sour cream.