Delicious Sausage and Egg Breakfast Casserole

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A cozy morning calls for a hearty breakfast that brings everyone to the table—and this Sausage and Egg Breakfast Casserole does exactly that. It’s the kind of recipe that fills your kitchen with the smell of sizzling sausage, bubbling cheese, and buttery baked eggs. Golden, savory, and satisfying, this casserole is ideal for weekend brunch, holiday mornings, or prepping ahead for busy weekdays.

The beauty of this dish lies in its simplicity. Layers of browned sausage, fluffy eggs, shredded cheese, and bread cubes come together in a comforting bake. It’s easy to customize with your favorite add-ins like peppers, spinach, or different cheeses. And best of all? You can prepare it the night before and just pop it in the oven when you wake up.

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What Kind of Sausage Should I Use?

For the best flavor, use ground breakfast sausage, either mild or spicy depending on your taste. Pork sausage adds rich depth, but turkey sausage or plant-based alternatives can work too. Just be sure to fully cook and drain the sausage before layering it into the casserole.

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Ingredients for the Sausage and Egg Breakfast Casserole

Breakfast sausage: The star of the dish, providing savory flavor and heartiness.

Eggs: Whisked together to create the creamy, custard-like base that binds everything together.

Milk: Helps lighten the egg mixture and give the casserole its soft texture.

Bread cubes: Day-old or slightly toasted bread works best to soak up the egg mixture without becoming mushy.

Cheddar cheese: Adds that melty, golden top and cheesy goodness throughout the casserole.

Salt & pepper: A simple seasoning to enhance the overall flavor.

Optional veggies: Diced bell peppers, onions, or baby spinach make great additions for a veggie-packed version.

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How To Make the Delicious Sausage and Egg Breakfast Casserole

Step 1: Prepare the Sausage

Start by browning the breakfast sausage in a skillet over medium heat. Break it up into crumbles as it cooks and stir occasionally until fully cooked. Drain excess grease and set aside.

Step 2: Assemble the Bread Base

Cube your bread into bite-sized pieces and spread them evenly in a greased 9×13-inch baking dish. This forms the base that soaks up the egg mixture and gives the casserole structure.

Step 3: Add the Sausage and Cheese

Sprinkle the cooked sausage over the bread layer, making sure it’s distributed evenly. Follow this with a generous handful of shredded cheddar cheese, or any cheese blend you enjoy.

Step 4: Mix the Egg Custard

In a large mixing bowl, whisk together the eggs, milk, salt, and pepper until well combined. If you’re including veggies, fold them in now.

Step 5: Pour and Soak

Slowly pour the egg mixture over the casserole, allowing it to seep into the bread. Gently press down the top with a spatula to make sure everything is well coated.

Step 6: Let it Rest (Optional Overnight Step)

Cover the dish with foil and refrigerate it for at least 1 hour—or overnight—for best texture and flavor. This allows the bread to fully absorb the egg mixture.

Step 7: Bake Until Golden

Preheat your oven to 350°F (175°C). Bake the casserole uncovered for 40 to 45 minutes, or until the top is golden brown and the center is set. Let it cool slightly before slicing.

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How to Serve and Store This Breakfast Casserole

This sausage and egg breakfast casserole is incredibly versatile. Serve it warm straight from the oven with a side of fresh fruit or a simple green salad for a balanced brunch. It’s also perfect with hot sauce or a dollop of sour cream on top.

For meal prep, this casserole holds up beautifully. Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or the oven at 300°F until warmed through. You can also freeze portions for up to 2 months—just thaw overnight in the fridge before reheating.

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Frequently Asked Questions

How far in advance can I make this casserole?

You can prepare the casserole up to 24 hours in advance. Store it covered in the refrigerator until ready to bake.

Can I use a different type of bread?

Absolutely! French bread, brioche, sourdough, or even croissants all work well. Just avoid very soft bread like white sandwich loaves that may turn soggy.

Can I make it vegetarian?

Yes! Substitute the sausage with plant-based crumbles or skip the meat entirely and add sautéed vegetables instead.

What cheese works best?

Cheddar is a classic, but feel free to use Monterey Jack, mozzarella, or a spicy pepper jack for a flavor boost.

How do I know when it’s fully cooked?

The casserole is done when the top is golden, the edges are slightly puffed, and a knife inserted in the center comes out clean.

Can I double the recipe?

Yes, just use two baking dishes and rotate them halfway through baking to ensure even cooking.

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Want More Breakfast Ideas?

If this Sausage and Egg Breakfast Casserole is your kind of morning comfort food, you’ll love exploring these other breakfast favorites from Life with Jam:

• Try the Blueberry Cottage Cheese Breakfast Bake for a fruity, protein-packed alternative.
• Looking for a sweet start? The Cinnamon Roll French Toast Roll-Ups are a fun twist on classic cinnamon rolls.
• Don’t miss the Breakfast Roll-Ups for a grab-and-go breakfast you can freeze ahead.
• Or bake up the cozy and creamy Old-Fashioned Egg Custard Pie for a nostalgic treat.
• If you’re leaning savory, the Chicken Crescent Roll Casserole is a hearty crowd-pleaser.

These recipes are perfect whether you’re hosting brunch or just enjoying a peaceful morning with a cup of coffee.

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Save This Pin + Share Your Results

📌 Save this recipe to your Pinterest breakfast board so it’s easy to find when you need a no-fuss, delicious morning meal.

And I’d love to hear how your version turned out! Did you mix in veggies? Add extra cheese? Maybe swapped the sausage for something else?

Let’s keep the breakfast inspiration going—leave a comment below with your spin on it or any questions you have.

For more breakfast and brunch recipes I make daily, follow me over on Pinterest: Life with Jam on Pinterest.

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