Skillet Dinners

Hash Brown Casserole

Name: Hash Brown Casserole
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Yield: 6 servings
Ingredients: 1 lb (450g) ground beef; 1 large onion, diced; 3 cloves garlic, minced; 1 cup (115g) frozen hash browns, thawed; 1 cup (115g) shredded cheddar cheese; 1/2 cup (55g) shredded mozzarella cheese; 1 tsp (5g) Worcestershire sauce; 1 tsp (5g) dried oregano; 1/2 tsp (2g) salt; 1/4 tsp (1g) black pepper; 2 tbsp (30g) olive oil

By Delia Sinclair · June 19, 2026 · Skillet Dinners

Prep20 min

Cook35 min

Total55 min

Serves6

Hash Brown Casserole — Warm, cheesy, comforting casserole

There's something about a warm, cheesy casserole that just feels like home, doesn't it? For me, it's the smell of ground beef browning in a skillet, mixed with the earthy scent of sautéed onions and the comforting aroma of hash browns baking in the oven. It's a feeling that takes me back to my childhood, when my mom would make a big casserole for Sunday dinner and the whole family would gather around the table to enjoy it together.

As I grew older and started cooking for my own family, I realized just how much I loved making casseroles. They're easy, they're comforting, and they're perfect for a busy weeknight dinner when you need something that can be ready in no time. That's why I'm excited to share this Hash Brown Casserole recipe with you - it's a classic comfort food dish that's sure to become a favorite in your household.

This recipe is special because it's made with simple, everyday ingredients that you probably already have in your pantry. It's also incredibly versatile - you can customize it to your taste by adding different seasonings or toppings. And the best part? It's ready in just 45 minutes, making it the perfect solution for a quick and easy dinner.

So who is this recipe for? It's for anyone who loves comfort food, but doesn't have a lot of time to spend in the kitchen. It's for families with kids, who will love the familiar flavors and textures of this casserole. And it's for anyone who just wants a delicious, satisfying meal that will fill their belly and warm their heart.

I like to make this recipe on a chilly fall or winter evening, when the smell of baking hash browns and ground beef fills the house and makes everyone feel cozy and hungry. It's also a great option for a weekend dinner, when you have a little more time to relax and enjoy a homemade meal. Whatever the occasion, I know you'll love this Hash Brown Casserole recipe - so let's get started!

Why You’ll Love This Recipe

This recipe is easy to make and requires minimal preparation time
It's a comforting, satisfying meal that's perfect for a busy weeknight dinner
The combination of ground beef, hash browns, and cheese is a classic comfort food combination that's sure to please
You can customize the recipe to your taste by adding different seasonings or toppings
It's a great option for a family dinner, as it's easy to make in large quantities and is sure to be a hit with kids and adults alike
The recipe is also budget-friendly, as it uses affordable ingredients and makes a big batch of food

Why This Recipe Works

The key to this recipe is the layering of flavors and textures. By browning the ground beef and sautéing the onions, you create a rich, savory flavor that's enhanced by the addition of garlic and Worcestershire sauce. The hash browns add a nice crunch and texture, while the cheese binds everything together and adds a creamy, melty element.

Another important factor is the use of a combination of cheddar and mozzarella cheese. The cheddar adds a sharp, tangy flavor, while the mozzarella provides a smooth, creamy texture. This blend of cheeses helps to balance out the flavors in the casserole and creates a delicious, well-rounded taste experience.

Finally, the cooking technique used in this recipe is important. By baking the casserole in a hot oven, you get a nice golden-brown crust on top, while the inside remains tender and flavorful. This technique also helps to cook the hash browns evenly, so they're crispy on the outside and fluffy on the inside.

Ingredients You’ll Need

When it comes to making this Hash Brown Casserole, you'll need a few simple ingredients that you probably already have in your pantry. The key players in this recipe are ground beef, hash browns, cheese, and onions - these ingredients come together to create a delicious, satisfying meal that's sure to become a favorite.

When shopping for ingredients, be sure to choose high-quality options that will add flavor and texture to your casserole. For the ground beef, look for a lean option that's at least 80% lean. For the hash browns, you can use either frozen or fresh - just be sure to thaw the frozen ones first. And for the cheese, choose a combination of cheddar and mozzarella that will add a rich, creamy flavor to your casserole.

1 lb (450g) ground beefChoose a lean option that's at least 80% lean, as this will help to reduce the fat content of your casserole and make it healthier
1 large onion, dicedUse a sweet onion, such as Vidalia or Maui, for the best flavor
3 cloves garlic, mincedMince the garlic finely, as this will help to distribute the flavor evenly throughout the casserole
1 cup (115g) frozen hash browns, thawedUse frozen hash browns for convenience, or substitute with 2 cups (220g) diced fresh potatoes
1 cup (115g) shredded cheddar cheeseChoose a sharp cheddar for the best flavor, and be sure to shred it finely so it melts evenly
1/2 cup (55g) shredded mozzarella cheeseUse a high-quality mozzarella that will melt smoothly and add a creamy texture to your casserole
1 tsp (5g) Worcestershire sauceThis adds a rich, savory flavor to the casserole - be sure to use a high-quality option for the best taste
1 tsp (5g) dried oreganoUse a high-quality dried oregano that will add a pungent, earthy flavor to your casserole
1/2 tsp (2g) saltUse a flaky sea salt or kosher salt for the best flavor, and be sure to sprinkle it evenly throughout the casserole
1/4 tsp (1g) black pepperUse a freshly ground black pepper for the best flavor, and be sure to sprinkle it evenly throughout the casserole
2 tbsp (30g) olive oilUse a high-quality olive oil that will add a rich, fruity flavor to your casserole

Equipment You’ll Need

Large heavy skillet or Dutch ovenSharp chef's knifeCutting boardMeasuring cups and spoonsWooden spoon or spatulaInstant-read thermometer9x13 inch baking dish

How to Make Hash Brown Casserole

1
Preheat your oven to 400°F (200°C), and make sure you have a rack in the center of the oven
2
In a large skillet, heat 1 tablespoon (15g) of olive oil over medium-high heat until it's shimmering and hot, about 2-3 minutes
3
Add the diced onion to the skillet and cook until it's translucent and starting to brown, about 5-6 minutes
4
Add the minced garlic to the skillet and cook for 1 minute, stirring constantly to prevent burning
5
Add the ground beef to the skillet, breaking it up with a spoon as it cooks, until it's no longer pink and reaches an internal temperature of 160°F (71°C), about 5-7 minutes
6
Drain the excess fat from the skillet, then stir in the Worcestershire sauce and dried oregano, and cook for 1 minute
7
In a separate bowl, combine the thawed hash browns, shredded cheddar cheese, and shredded mozzarella cheese, and mix well to combine
8
In a greased 9x13 inch baking dish, create a layer of the hash brown mixture, followed by a layer of the ground beef mixture, and repeat this process until all ingredients are used, ending with a layer of cheese on top
9
Cover the dish with aluminum foil and bake for 25 minutes, then remove the foil and continue baking until the top is golden brown and the casserole is hot and bubbly, about 10-15 minutes more
10
Remove the casserole from the oven and let it rest for 10 minutes before serving, to allow the flavors to meld together and the casserole to set
11
Serve the casserole hot, garnished with chopped fresh herbs or a dollop of sour cream if desired

Expert Tips

Use a high-quality ground beef that's at least 80% lean, as this will help to reduce the fat content of your casserole and make it healthier
Don't overcook the hash browns, as they can become dry and unpleasantly crunchy
Use a combination of cheddar and mozzarella cheese for the best flavor and texture
Let the casserole rest for 10 minutes before serving, to allow the flavors to meld together and the casserole to set
Consider adding other ingredients to the casserole, such as diced bell peppers or chopped cooked bacon, to add more flavor and texture
Use a thermometer to ensure the ground beef is cooked to a safe internal temperature, and to prevent overcooking

Common Mistakes to Avoid

Overcooking the hash browns, which can make them dry and unpleasantly crunchy
Not draining the excess fat from the skillet, which can make the casserole greasy and unpleasant
Not using a high-quality ground beef, which can affect the flavor and texture of the casserole
Not letting the casserole rest before serving, which can cause it to be messy and difficult to serve
Not using a combination of cheddar and mozzarella cheese, which can affect the flavor and texture of the casserole
Not covering the dish with aluminum foil during baking, which can cause the top to burn or become too brown

Variations and Substitutions

Add diced bell peppers or chopped cooked bacon to the casserole for added flavor and texture
Use different types of cheese, such as Parmesan or American, for a unique flavor profile
Add some heat to the casserole by incorporating diced jalapenos or red pepper flakes
Use leftover roasted vegetables, such as broccoli or carrots, to add more flavor and nutrients to the casserole
Make individual servings of the casserole in ramekins or small baking dishes, for a fun and easy meal
Use a different type of potato, such as sweet potatoes or Yukon golds, for a unique flavor and texture

What to Serve With Hash Brown Casserole

This Hash Brown Casserole is a hearty, satisfying meal that's perfect for a busy weeknight dinner. It's also a great option for a family gathering or potluck, as it's easy to make in large quantities and is sure to be a hit with both kids and adults. Consider serving it with a side of steamed vegetables, such as broccoli or green beans, for a well-rounded meal.

Some other options for sides include a simple green salad, a crusty loaf of bread, or a side of roasted vegetables. You could also serve the casserole with a dollop of sour cream or a sprinkle of chopped fresh herbs, such as parsley or chives, for added flavor and texture.

Steamed vegetables, such as broccoli or green beansA simple green saladA crusty loaf of breadRoasted vegetables, such as Brussels sprouts or carrotsA dollop of sour cream or a sprinkle of chopped fresh herbs, such as parsley or chives

Make-Ahead, Storage, Freezing and Reheating

This Hash Brown Casserole can be made ahead of time and refrigerated or frozen for later use. To refrigerate, simply assemble the casserole and store it in the refrigerator for up to 24 hours before baking. To freeze, assemble the casserole and store it in an airtight container or freezer bag for up to 3 months. When you're ready to bake, simply thaw the casserole overnight in the refrigerator and bake as directed.

To reheat the casserole, simply cover it with aluminum foil and bake in a preheated oven at 350°F (180°C) for 20-25 minutes, or until hot and bubbly. You can also reheat individual servings in the microwave, by covering with a paper towel and heating for 30-45 seconds, or until hot and steaming.

It's also a good idea to consider making a double batch of the casserole and freezing it for later use. This can be a great option for meal prep or for making a quick and easy dinner on a busy night. Simply thaw the frozen casserole overnight in the refrigerator, then bake as directed.

When storing the casserole, be sure to use airtight containers or freezer bags to prevent freezer burn and keep the casserole fresh. You can also label the containers or bags with the date and contents, so you can easily keep track of what you have in the freezer.

Frequently Asked Questions

Can I make this casserole ahead of time?

Yes, you can make this casserole ahead of time and refrigerate or freeze it for later use. Simply assemble the casserole and store it in the refrigerator for up to 24 hours before baking, or freeze it for up to 3 months.

Can I use different types of cheese?

Yes, you can use different types of cheese in this casserole, such as Parmesan or American. Simply substitute the cheddar and mozzarella cheese with your preferred cheese, and adjust the amount to taste.

Can I add other ingredients to the casserole?

Yes, you can add other ingredients to the casserole, such as diced bell peppers or chopped cooked bacon. Simply add the ingredients to the casserole and adjust the cooking time as needed.

How do I reheat the casserole?

Can I make individual servings of the casserole?

Yes, you can make individual servings of the casserole in ramekins or small baking dishes. Simply assemble the casserole and divide it among the ramekins or baking dishes, and bake until hot and bubbly.

How do I store the casserole?

To store the casserole, simply use airtight containers or freezer bags to prevent freezer burn and keep the casserole fresh. You can also label the containers or bags with the date and contents, so you can easily keep track of what you have in the freezer.

Can I freeze the casserole?

Yes, you can freeze the casserole for up to 3 months. Simply assemble the casserole and store it in an airtight container or freezer bag, and thaw overnight in the refrigerator before baking.

How do I thaw the frozen casserole?

To thaw the frozen casserole, simply place it in the refrigerator overnight and let it thaw slowly. You can also thaw it quickly by submerging the container or bag in cold water, changing the water every 30 minutes until thawed.

Can I make this casserole in a slow cooker?

Yes, you can make this casserole in a slow cooker. Simply assemble the casserole and cook on low for 3-4 hours, or until hot and bubbly.

The Full Recipe

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