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This Sausage Egg Breakfast Casserole is a hearty, make-ahead breakfast recipe with frozen hashbrowns, savory sausage or ham, fluffy eggs, and melty cheddar cheese.
Easy and Delicious Breakfast Casserole
As a mom who loves to plan ahead and ensure my family enjoys wholesome meals, one of my go-to dishes for special mornings is a hearty Breakfast Casserole.
It’s not only delicious but also incredibly convenient, especially when I can prepare it the night before and simply pop it in the oven the next morning.
Here’s why this dish has become a staple in my kitchen, along with some tips on how to make it and what to serve alongside it.
Prep Ahead for Stress-Free Mornings
This breakfast casserole is the ultimate make-ahead breakfast for busy mornings.
Imagine waking up on the day your extended family is visiting, knowing that breakfast is already taken care of.It’s packed with hearty ingredients like frozen hashbrowns, savory sausage or ham, and plenty of melty cheddar cheese—all held together with a fluffy egg mixture seasoned just right.
You can prep it the night before, refrigerate, and simply bake it in the morning for a hot, satisfying meal with zero stress.
It also reheats beautifully, making it perfect for leftovers throughout the week. Best of all, it’s easy to freeze ahead of time—just assemble, cover tightly, and freeze until you’re ready to bake.
That’s the beauty of this Breakfast Casserole—it’s designed to be prepped ahead, allowing you to enjoy a relaxed morning with loved ones.
Equipment You’ll Need
To make this Sausage Egg Breakfast Casserole, you’ll need the following kitchen tools:
Why Breakfast Casserole is a great healthy breakfast option
A key reason why breakfast casseroles are a wholesome choice for mornings is their high protein content.
Packed with eggs, cheese, and optional meats like ham or sausage, each serving delivers a substantial amount of protein essential for sustained energy throughout the day.
Eggs, in particular, provide a complete source of protein along with important vitamins and minerals, while cheese contributes calcium and additional protein.
By incorporating these nutritious ingredients into one satisfying dish, a breakfast casserole not only satisfies hunger but also supports a balanced diet, making it an ideal choice for families looking to start their day with a nutritious meal.
Ingredients
- 9 cups frozen hashbrowns – Provides a hearty, crispy base that makes the casserole filling and satisfying.
- 2 cups diced ham or 1 lb sausage (cooked and crumbled) – Adds savory, protein-packed flavor to every bite.
- 4 cups shredded cheddar cheese – Melts into the casserole for gooey, cheesy goodness throughout.
- 12 eggs – Bind the casserole together while adding richness and protein.
- 1/2 cup milk – Helps create a smooth, creamy texture in the egg mixture.
- 1 tsp salt – Enhances the flavors of the meat, cheese, and potatoes.
- 1/2 tsp garlic powder – Adds subtle savory depth and aroma.
- 1/2 tsp onion powder – Brings mild sweetness and classic breakfast flavor.
- 1/2 tsp dry mustard – Gives a hint of tang that balances the richness of the eggs and cheese.
Step-by-Step to make Breakfast Casserole
Prepare the Casserole
Melt one stick of butter and pour on the bottom of a 9×13 inch baking dish. Spread the frozen hashbrowns evenly in the dish.
Sprinkle the diced ham or cooked sausage over the hashbrowns.
Top with shredded cheddar cheese.
In a large bowl, whisk together the eggs, milk, salt, garlic powder, onion powder, and dry mustard until well combined.
Pour the egg mixture evenly over the hashbrown, meat, and cheese layers.
Cover the baking dish with foil or plastic wrap and refrigerate overnight (or for at least 4 hours).
When ready to bake, preheat your oven to 350°F (175°C).
Remove the plastic wrap or foil and bake the casserole uncovered for about 60 minutes, or until the center is set and the top is golden brown.
Let the casserole cool for 10 minutes before slicing and serving.
Why You’ll Love This Recipe
You will love this Breakfast Sausage Egg Casserole because it uses simple, family friendly ingredients that create a hearty and satisfying meal with very little prep work.
Frozen hashbrowns, savory ham or sausage, fluffy eggs, and plenty of cheddar cheese come together to make a comforting breakfast that fills everyone up.
This recipe is perfect for busy mornings because it can be prepared in advance and baked when you are ready.
Moms appreciate how easy it is to customize with sautéed veggies or a blend of cheeses, especially when you want added flavor without complicating the recipe.
It is also a great dish to serve for holidays, brunch gatherings, or weekend breakfasts since it feeds a crowd with minimal effort. Once you make it, it will become a go to breakfast your family will ask for again.
Common Mistakes to Avoid
One common mistake is not cooking the sausage fully before adding it to the casserole, which can add extra grease and affect the final texture.
Another mistake is using frozen hashbrowns straight from the freezer without breaking them apart, because clumps can cause uneven cooking.
Make sure to measure the milk and seasonings as written, since adding extra liquid can make the center soft instead of set.
It is also important to avoid overbaking, because the eggs can become rubbery if left in the oven too long.
Tips for Making the Best Breakfast Sausage Egg Casserole
Cook your sausage completely and drain well so the casserole bakes up light and not greasy.
Spread the frozen hashbrowns evenly in the dish so they create a consistent base that cooks evenly under the egg mixture.
For extra flavor, sauté onions, peppers, or mushrooms and mix them into the casserole before baking.
Try using a blend of cheeses like cheddar, Monterey Jack, or pepper jack to add richness and a little variety to the final dish.
How do I store my Breakfast Casserole?
Refrigerator: If you have leftovers, cover the casserole dish tightly with foil or transfer individual portions to airtight containers. Refrigerate for up to 3 days.
Freezer: To freeze, wrap the cooled casserole (either the whole dish or individual portions) tightly in plastic wrap and then foil.
Label with the date and freeze for up to 2 months. To reheat, thaw overnight in the refrigerator and bake at 350°F (175°C) until heated through.
What to serve alongside your Breakfast Casserole?
A Breakfast Casserole is versatile and pairs wonderfully with various sides to create a balanced meal. Here are some ideas:
Fresh Fruit: Serve a platter of seasonal fruits such as berries, melon slices, and grapes for a refreshing touch.
Yogurt: Offer bowls of Greek yogurt with honey and granola for those who prefer a lighter option or want an extra protein boost.
Baked Goods: Include a basket of freshly baked muffins or biscuits for those who love a bit of bread with their breakfast.
Beverages: Don’t forget coffee, tea, and juices to round out the meal and accommodate everyone’s drink preferences.
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Preparing a Breakfast Casserole the night before a family gathering not only ensures that you have a delicious and satisfying meal ready but also allows you to spend more time with your loved ones.
With its simple preparation, flexible ingredients, and ability to be stored and reheated easily, this dish has become my secret weapon for stress-free mornings.
Whether it’s for a holiday brunch or a casual weekend get-together, this casserole is sure to please everyone around the table.
Give it a try and see how it transforms your breakfast routine into something truly special!
Sausage Egg Breakfast Casserole
Ingredients
- 9 cups frozen hashbrowns
- 2 cups diced ham or 1 lb sausage cooked and crumbled
- 4 cups shredded cheddar cheese
- 12 eggs
- 1/2 cup milk
- 1 tsp salt
- 1/2 tsp garlic powder
- 1/2 tsp onion powder
- 1/2 tsp dry mustard
Instructions
Prepare the Casserole
- Melt one stick of butter and pour on the bottom of a 9×13 inch baking dish. Spread the frozen hashbrowns evenly in the dish.
- Sprinkle the diced ham or cooked sausage over the hashbrowns.
- Top with shredded cheddar cheese.
Mix the Eggs
- In a large bowl, whisk together the eggs, milk, salt, garlic powder, onion powder, and dry mustard until well combined.
Assemble and Chill
- Assemble and Chill:
- Pour the egg mixture evenly over the hashbrown, meat, and cheese layers.
- Cover the baking dish with foil or plastic wrap and refrigerate overnight (or for at least 4 hours).
Baking
- When ready to bake, preheat your oven to 350°F (175°C).
- Remove the plastic wrap or foil and bake the casserole uncovered for about 60 minutes, or until the center is set and the top is golden brown.
Serve
- Let the casserole cool for a few minutes before slicing and serving.
Nutrition
Tried this recipe for yourself? Leave a comment and photos below!
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Nutrition Disclaimer: Our Family Cooks is not a dietitian or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.
