Hashbrown Breakfast Casserole

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Golden, cheesy, and packed with flavor, Hashbrown Breakfast Casserole is the ultimate morning comfort food. This dish combines crispy hashbrowns, savory sausage, eggs, and melted cheese into a warm, satisfying bake that’s perfect for feeding a crowd. Each bite delivers a mix of textures—from the crispy top layer to the creamy, flavorful inside—making it a must-have for weekend brunches, holiday mornings, or meal prep for busy weeks.

What makes this casserole special is its versatility. You can customize it with different proteins, vegetables, and cheeses to suit your taste. Whether you’re looking for a protein-packed start to your day or a simple way to use up leftover ingredients, this recipe is a guaranteed crowd-pleaser. Plus, it’s easy to prepare ahead of time, so all you have to do in the morning is bake and enjoy!


Why You’ll Love This Hashbrown Breakfast Casserole

  • Effortless and Convenient – Minimal prep work and easy-to-find ingredients make this a stress-free breakfast.
  • Feeds a Crowd – Perfect for family breakfasts, potlucks, and holiday gatherings.
  • Make-Ahead Friendly – Assemble the night before and bake in the morning.
  • Customizable – Swap out meats, cheeses, or veggies to match your preferences.
  • Crispy and Cheesy Goodness – A golden top layer with gooey melted cheese inside makes every bite delicious.

Preparation Phase & Tools to Use

To make the perfect Hashbrown Breakfast Casserole, having the right tools can make the process smooth and efficient. Here’s what you’ll need and why each tool is essential:

  • 9×13-inch Baking Dish – This ensures even cooking and gives enough space for layering ingredients.
  • Mixing Bowls – Used for whisking eggs, combining ingredients, and ensuring even seasoning.
  • Whisk – Helps in beating the eggs to a smooth consistency.
  • Spatula or Wooden Spoon – Useful for mixing ingredients and spreading the hashbrowns evenly.
  • Cheese Grater – If using block cheese, freshly grated cheese melts better than pre-shredded.
  • Measuring Cups & Spoons – Ensures accurate ingredient proportions for the best results.
  • Skillet or Frying Pan – Needed to cook sausage, bacon, or vegetables before adding them to the casserole.

Having everything prepped ahead of time will make the assembly process quick and hassle-free.


Preparation Tips

  • Thaw the Hashbrowns – If using frozen hashbrowns, let them thaw completely and pat them dry with a paper towel. Excess moisture can make the casserole soggy.
  • Cook Proteins First – Sausage, bacon, or any meat should be fully cooked before adding to the casserole to enhance flavor and texture.
  • Whisk Eggs Thoroughly – Ensure a smooth and well-mixed egg base to create a fluffy casserole.
  • Grease the Baking Dish – Prevents sticking and makes serving easier.
  • Layer Evenly – Distribute ingredients in an even layer to ensure balanced flavor in every bite.
  • Let It Rest – After baking, let the casserole sit for 5-10 minutes before slicing to help it set and make serving easier.

Ingredients for This Hashbrown Breakfast Casserole

To create a flavorful and hearty Hashbrown Breakfast Casserole, you’ll need a combination of classic breakfast ingredients. Here’s what you’ll need:

Main Ingredients:

  • 1 (30 oz) bag frozen hashbrowns, thawed – Provides the perfect crispy and hearty base.
  • 1 lb breakfast sausage, cooked and crumbled – Adds a savory, protein-packed element.
  • 8 large eggs – Helps bind the casserole together and creates a fluffy texture.
  • 1 cup milk – Adds moisture and a creamy consistency to the egg mixture.
  • 2 cups shredded cheddar cheese – Gives the dish its cheesy, melty goodness.
  • 1/2 teaspoon salt – Enhances the flavors of all ingredients.
  • 1/2 teaspoon black pepper – Adds a subtle spice to balance the dish.

Optional Additions & Variations:

  • 1/2 cup bell peppers (diced) – For a slight crunch and natural sweetness.
  • 1/2 cup onions (chopped) – Adds a mild, savory depth of flavor.
  • 1/2 teaspoon garlic powder – Enhances the overall taste.
  • 1/4 teaspoon paprika – Adds a smoky flavor to the dish.
  • 1/2 cup cooked and crumbled bacon – Another protein option for extra crispiness.
  • 1/2 cup diced tomatoes – For a fresh and juicy contrast.
  • 1/4 cup chopped fresh parsley – A pop of color and a fresh finishing touch.

This ingredient list allows for flexibility, so feel free to adjust based on what you have on hand or your personal preferences!


Step 1: Preheat the Oven & Prepare the Dish

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with cooking spray or butter to prevent sticking.


Step 2: Cook the Sausage & Vegetables

In a large skillet over medium heat, cook the breakfast sausage until browned and fully cooked. Break it up into crumbles as it cooks. If using onions or bell peppers, sauté them in the same pan until softened. Drain any excess grease.


Step 3: Mix the Egg Mixture

In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, and garlic powder (if using). Whisk until fully combined for a smooth and even texture.


Step 4: Assemble the Casserole

  • Spread the thawed hashbrowns evenly in the greased baking dish.
  • Sprinkle the cooked sausage (and vegetables, if using) over the hashbrowns.
  • Pour the egg mixture evenly over the top.
  • Sprinkle the shredded cheddar cheese over everything, ensuring even coverage.

Step 5: Bake the Casserole

Place the dish in the preheated oven and bake for 35-40 minutes or until the eggs are fully set, and the top is golden brown. To check for doneness, insert a knife into the center—if it comes out clean, it’s ready.


Step 6: Let It Rest & Serve

Remove the casserole from the oven and let it rest for 5-10 minutes before slicing. Garnish with fresh parsley, diced tomatoes, or extra cheese if desired. Serve warm and enjoy!


Notes

  • Make-Ahead Option: You can assemble the casserole the night before, cover it, and refrigerate it overnight. In the morning, just bake as directed (adding 5-10 extra minutes if baking straight from the fridge).
  • Spice It Up: Add a pinch of red pepper flakes or a dash of hot sauce to the egg mixture for extra heat.
  • Dairy-Free Alternative: Swap the milk for unsweetened almond milk and use dairy-free cheese.
  • Meat Variations: Try using ham, turkey sausage, or chorizo for a different flavor profile.
  • Extra Veggies: Mushrooms, spinach, or jalapeños can add variety and nutrition.

Watch Out for These Mistakes While Cooking

  • Using Frozen Hashbrowns Without Thawing – Excess moisture can make the casserole soggy. Be sure to thaw and pat dry before using.
  • Overbaking the Casserole – Baking too long can make it dry. Remove it from the oven as soon as the eggs are fully set.
  • Uneven Layering – Distributing ingredients unevenly can result in inconsistent bites. Spread everything out evenly for the best texture.
  • Skipping the Resting Time – Letting the casserole sit for at least 5 minutes after baking helps it set properly and makes slicing easier.
  • Using Pre-Shredded Cheese – Freshly grated cheese melts better and has a creamier texture compared to pre-packaged shredded cheese.

What to Serve With Hashbrown Breakfast Casserole?

A hearty Hashbrown Breakfast Casserole pairs wonderfully with a variety of sides and drinks to create a complete and satisfying meal. Whether you’re serving it for brunch or a special gathering, here are some delicious options:

8 Great Pairings:

1. Fresh Fruit Salad

A mix of berries, melons, and citrus adds a light and refreshing contrast to the rich and cheesy casserole.

2. Buttery Biscuits

Soft, flaky biscuits are perfect for soaking up any extra egg and cheese goodness. Serve with butter or jam for a sweet touch.

3. Crispy Bacon or Sausage Links

If you want to double up on protein, extra crispy bacon or juicy sausage links make a great side.

4. Avocado Slices or Guacamole

Creamy avocado complements the casserole’s cheesy, savory flavors while adding healthy fats.

5. Toast or English Muffins

A simple, crispy slice of toast or an English muffin is great for balancing out the meal. Try it with butter, honey, or cream cheese.

6. Greek Yogurt with Granola

A light and nutritious side that adds crunch and a bit of sweetness to balance the richness of the casserole.

7. A Fresh Green Salad

A simple salad with mixed greens, cherry tomatoes, and a light vinaigrette adds a fresh contrast.

8. Coffee, Orange Juice, or a Smoothie

A strong cup of coffee, fresh-squeezed orange juice, or a fruit smoothie complements the casserole perfectly.

These pairings create a well-rounded meal that balances flavors and textures, making your breakfast or brunch extra special!


Storage Instructions

Refrigeration:

  • Allow the casserole to cool completely before storing.
  • Cover it tightly with plastic wrap or transfer it to an airtight container.
  • Store in the refrigerator for up to 4 days.

Freezing:

  • Wrap the entire casserole (or individual portions) in plastic wrap, then cover with foil.
  • Store in the freezer for up to 2 months.
  • To reheat, thaw in the refrigerator overnight and bake at 350°F (175°C) for 20-25 minutes or until warmed through.

Reheating Options:

  • Oven: Bake at 350°F (175°C) for 15-20 minutes until heated through.
  • Microwave: Heat individual portions on medium power for 1-2 minutes, checking for warmth.

Estimated Nutrition

The following nutritional values are approximate and based on one serving (out of 8 servings total):

  • Calories: ~350 kcal
  • Protein: ~18g
  • Carbohydrates: ~22g
  • Fat: ~22g
  • Saturated Fat: ~10g
  • Cholesterol: ~180mg
  • Fiber: ~2g
  • Sodium: ~650mg

For a lighter version, you can use turkey sausage, reduced-fat cheese, and egg whites to lower the calorie and fat content while still enjoying the delicious flavors!


Frequently Asked Questions

1. Can I make this casserole ahead of time?

Yes! Assemble everything the night before, cover, and refrigerate. Bake in the morning, adding 5-10 extra minutes if baking straight from the fridge.

2. Can I use fresh potatoes instead of frozen hashbrowns?

Absolutely! Shred fresh potatoes, rinse them to remove excess starch, and pat them dry to avoid a soggy casserole.

3. How do I prevent my casserole from being watery?

Make sure to thaw and drain frozen hashbrowns, cook any veggies beforehand, and avoid adding excess liquid to the egg mixture.

4. Can I make this vegetarian?

Yes! Skip the sausage and add more veggies like mushrooms, spinach, or bell peppers for a delicious meat-free option.

5. Can I use different cheeses?

Definitely! While cheddar is classic, you can try pepper jack, mozzarella, or Swiss for different flavors.

6. How do I reheat leftovers without drying them out?

Cover the casserole with foil and bake at 350°F (175°C) for 15-20 minutes or microwave individual portions at medium power for 1-2 minutes.

7. Can I add more eggs to make it fluffier?

Yes! Adding 1-2 extra eggs will create a slightly thicker and fluffier texture.

8. Can I freeze individual portions?

Yes! Slice the casserole into portions, wrap them in plastic wrap and foil, then freeze. Reheat in the oven or microwave when needed.


Conclusion

Hashbrown Breakfast Casserole is a comforting, hearty dish that’s perfect for breakfast, brunch, or meal prep. With its crispy hashbrowns, cheesy layers, and savory sausage, this casserole is sure to be a crowd-pleaser. Plus, it’s easy to customize with different ingredients to match your preferences. Whether you make it ahead of time or enjoy it fresh out of the oven, this dish is a must-try for any breakfast lover!


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Hashbrown Breakfast Casserole


  • Author: Nora Sinclair
  • Total Time: 55 minutes
  • Yield: 8 servings

Description

A warm, cheesy, and satisfying breakfast dish perfect for feeding a crowd! This Hashbrown Breakfast Casserole is packed with crispy hashbrowns, savory sausage, eggs, and melted cheese. Great for meal prep, weekend brunches, or holiday mornings!


Ingredients

1 (30 oz) bag frozen hashbrowns, thawed

1 lb breakfast sausage, cooked and crumbled

8 large eggs

1 cup milk

2 cups shredded cheddar cheese

1/2 teaspoon salt

1/2 teaspoon black pepper

Optional Additions:

1/2 cup diced bell peppers

1/2 cup chopped onions

1/2 teaspoon garlic powder

1/4 teaspoon paprika

1/2 cup cooked and crumbled bacon

1/2 cup diced tomatoes

1/4 cup chopped fresh parsley


Instructions

  1. Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish.
  2. Cook the sausage in a skillet over medium heat until browned. Drain excess grease.
  3. Whisk eggs, milk, salt, and pepper in a mixing bowl until fully combined.
  4. Assemble the casserole:
    • Spread thawed hashbrowns evenly in the baking dish.
    • Layer the cooked sausage on top.
    • Pour the egg mixture evenly over everything.
    • Sprinkle with shredded cheese.
  5. Bake for 35-40 minutes or until the eggs are set and the top is golden brown.
  6. Let rest for 5-10 minutes, then slice and serve.
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast

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