Name: Breakfast Sausage Casserole made easy and delicious
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 1 lb breakfast sausage (crumbled and browned); 6 large eggs; 2 cups shredded cheddar cheese; 1 cup milk; 1/2 tsp garlic powder; 1/2 tsp onion powder; 1/4 tsp black pepper; 1/2 tsp salt; 3 cups frozen hash browns (thawed); 1 tbsp chopped parsley (optional for garnish)

Jump to Recipe

There’s something magical about waking up to the smell of a warm, hearty Breakfast Sausage Casserole baking in the oven. I’ve leaned on this dish more times than I can count—especially on those chaotic mornings when everyone’s hungry but time is short.

This easy oven breakfast dish is my secret weapon for feeding a crowd without stress. It’s cozy, delicious, and comes together with just a few pantry staples. Whether you’re planning a make-ahead morning casserole for a holiday brunch or just need a savory egg and cheese casserole to win over picky eaters, this one never disappoints.

Why You’ll Love This Breakfast Sausage Casserole

It’s a comforting classic that takes the guesswork out of busy mornings. You’ll love how quickly it comes together—just layer, bake, and enjoy. The rich sausage, fluffy eggs, and melty cheese make every bite taste like a warm hug. Best of all? It’s a make-ahead morning casserole, so you can prep it the night before and wake up to effortless, hearty brunch comfort food.

Ingredients Breakfast Sausage Casserole

One of the best parts about this Breakfast Sausage Casserole is how simple the ingredient list is. You probably have most of these handy in your fridge or freezer already. Below, I’ve broken down the essentials and a few fun extras if you’re feeling creative. For exact amounts and a printable version, scroll to the bottom of the post.

Core Ingredients

Breakfast sausage: I use classic pork sausage, crumbled and browned to bring savory boldness. You can use turkey sausage too.
Eggs: The backbone of this savory egg and cheese casserole. They bind everything together while staying light and fluffy.
Cheddar cheese: Sharp cheddar melts beautifully and adds that irresistible, cheesy richness. Feel free to mix in Monterey Jack or mozzarella for variety.
Milk: A splash of milk makes the egg mixture creamy and smooth. Whole milk adds richness, but low-fat works too.
Hash browns: I love using frozen shredded hash browns—just thaw them first. They soak up the flavor like a sponge!
Seasonings: Garlic powder, onion powder, salt, and black pepper bring the flavor home without overpowering the main stars.
Parsley (optional): A sprinkle of fresh parsley on top for a pop of color and a hint of freshness.

Optional Add-ins and Substitutions

Veggies: Bell peppers, spinach, or mushrooms are great for color and extra nutrition. Sauté first to avoid excess moisture.
Spicy kick: Use hot sausage or add red pepper flakes if your crew likes a little heat.
Dairy-free: Swap out the cheese and milk with your favorite plant-based alternatives. Almond milk and vegan cheese work well.
Gluten-free: Double-check your sausage and hash browns to make sure they’re certified gluten-free. Most are, but always good to be sure.
Cheese variations: Try pepper Jack for spice, or Swiss for a mellow twist. Even a little feta can be delightful!

With just a few tweaks, this easy oven breakfast dish can become your very own signature recipe. Trust me—once you start experimenting, you’ll find new favorites every time you make it.

How to Make Breakfast Sausage Casserole

This Breakfast Sausage Casserole is as easy as it is satisfying. Whether you’re whipping it up for a lazy Sunday or prepping a make-ahead morning casserole for guests, these steps keep it foolproof and flavorful. Let’s get cooking!

Step 1 – Prep Your Baking Dish and Ingredients

First things first—preheat your oven to 350°F and lightly grease a 9×13-inch baking dish. This helps your casserole bake evenly and clean-up stay easy.

Spread the thawed hash browns into an even layer on the bottom of the dish. They’ll act as a cozy, crispy base for the hearty brunch comfort food magic to come.

Step 2 – Cook the Breakfast Sausage

In a large skillet over medium heat, cook your crumbled breakfast sausage until browned and fully cooked. I like mine just a little crispy around the edges—it adds texture and flavor.

Drain off any extra grease and then spoon the sausage evenly over the layer of hash browns in your dish. This savory base is already smelling amazing!

Step 3 – Mix the Egg Base

In a bowl, whisk together your eggs, milk, garlic powder, onion powder, salt, and pepper until the mixture is smooth and slightly frothy. This is the heart of your savory egg and cheese casserole.

Want a little extra flavor? Sometimes I toss in a pinch of dry mustard or a dash of hot sauce—just for fun.

Step 4 – Assemble the Casserole

Pour the egg mixture evenly over the sausage and hash browns. Give the dish a little shake to help the eggs settle into all the nooks and crannies.

Next, sprinkle the shredded cheddar cheese over the top. This is where the cheesy breakfast bake recipe really starts to shine!

Step 5 – Bake to Golden Perfection

Slide your dish into the oven and bake for 40–45 minutes. You’ll know it’s done when the center is set and the top is golden and bubbly.

If you’re unsure, give it a gentle jiggle. No wobble in the middle means it’s ready to come out.

Step 6 – Cool, Garnish, and Serve

Let your casserole rest for 5–10 minutes before slicing. This helps everything firm up and makes serving a breeze.

Top with a sprinkle of chopped parsley or green onions if you like a fresh finish. Then dig in and enjoy the best kind of easy oven breakfast dish—warm, cheesy, and downright comforting.

Tips for Success

Helpful Hints from the Kitchen

Thaw your hash browns completely before layering to avoid a soggy casserole.
Drain sausage well—extra grease can make the dish oily.
Use freshly shredded cheese for better melt and flavor.
Let the casserole cool before slicing—it holds together better that way.
Prep it the night before for a stress-free morning bake.

Equipment Needed

Kitchen Tools for Breakfast Sausage Casserole

9×13-inch baking dish: The perfect size for even baking and generous servings.
Mixing bowl: For whisking the eggs and spices into a smooth base.
Whisk or fork: Helps blend the egg mixture evenly—no lumps allowed!
Skillet: Essential for browning your sausage to savory perfection.
Spatula or wooden spoon: Great for stirring sausage or scooping servings.
Measuring cups/spoons: Handy for getting your seasonings and milk just right.
Oven mitts: Safety first—no one wants a morning burn!

Variations

Customize Your Breakfast Sausage Casserole

Veggie-loaded version: Add sautéed peppers, onions, spinach, or even zucchini for a colorful, nutrient-packed twist. It’s a sneaky way to get picky eaters to eat their greens!
Southwest flair: Mix in a can of green chiles, swap cheddar for pepper Jack, and sprinkle on some cilantro. Serve with a side of salsa for a zesty morning boost.
Meat lover’s dream: Combine sausage with cooked bacon or diced ham for an ultra-hearty brunch comfort food that’ll keep everyone full and happy.
Low-carb option: Skip the hash browns and use riced cauliflower instead. It’s a sneaky swap that still delivers that cozy casserole vibe without the carbs.
Vegetarian-friendly: Leave out the sausage and add more veggies or a plant-based meat alternative. A savory egg and cheese casserole doesn’t need meat to taste amazing.
Dairy-free delight: Use almond milk and dairy-free cheese if you’re avoiding lactose. The texture stays creamy, and the flavor still shines through.
Mini casserole cups: Pour the mixture into muffin tins for individual portions. Perfect for grab-and-go breakfasts during the weekday hustle.

This recipe is a blank canvas, and with just a few tweaks, your Breakfast Sausage Casserole becomes a new creation every time. Don’t be afraid to play with flavors—breakfast should never be boring!

Serving Suggestions

What to Serve with Breakfast Sausage Casserole

Fresh fruit salad: A vibrant mix of berries, melon, and citrus adds color and a refreshing contrast to the rich casserole.
Buttery toast or biscuits: Ideal for scooping up every last bit—because no cheesy edge should go to waste!
Simple green salad: Light and crisp greens with a lemony vinaigrette help balance out the hearty brunch comfort food.
Hot coffee or tea: There’s nothing better than sipping something warm while digging into a cheesy breakfast bake recipe.
Fresh juice or a mimosa: For special mornings, a bright sip of citrus rounds out the meal beautifully.

Frequently Asked Questions (FAQs)

Common Questions About Breakfast Sausage Casserole

Q: Can I make this cheesy breakfast bake recipe ahead of time?

A: Absolutely! That’s one of the best things about this Breakfast Sausage Casserole. I often prep it the night before—just assemble everything, cover it tightly, and refrigerate overnight. In the morning, pop it in the oven and bake as directed. It makes those groggy, pre-coffee hours so much easier.

Q: How do I store leftovers from the sausage egg hash brown casserole?

A: Leftovers keep beautifully. Once cooled, slice the casserole into portions and store them in an airtight container in the fridge for up to 4 days. I like stacking slices between parchment paper so they don’t stick together. It’s a lifesaver for quick weekday breakfasts!

Q: Can I freeze this make-ahead morning casserole?

A: Yes, you can freeze it either before or after baking. If freezing before, assemble the casserole in a freezer-safe dish (skip the garnish), wrap it well, and freeze up to 2 months. Thaw overnight in the fridge before baking. If freezing after baking, cool it completely, slice it, and freeze individual portions for easy grab-and-go meals.

Q: What’s the best way to reheat this savory egg and cheese casserole?

A: For best results, reheat slices in the oven at 350°F for about 15 minutes or until warmed through. If you’re in a rush, the microwave works too—just cover the slice with a damp paper towel and heat in 30-second intervals. The cheese melts again, and the eggs stay fluffy!

Q: Can I make this a vegetarian hearty brunch comfort food?

A: You sure can! Just skip the sausage and load it up with veggies or use your favorite plant-based sausage. I’ve made it with sautéed mushrooms, spinach, and a sprinkle of feta—and let me tell you, it’s just as satisfying. Even meat-lovers go back for seconds!

Final Thoughts

There’s something truly heartwarming about starting the day with a dish that feels like a hug in a pan. This Breakfast Sausage Casserole has fed my family through holidays, hectic school mornings, and cozy weekend brunches—and it never lets me down. It’s the kind of recipe that invites second helpings and shared smiles around the table. Whether you stick to the classic or try one of the tasty twists, it’s always a hit. So go ahead, make it once, and I promise it’ll earn a spot in your regular breakfast rotation. Your mornings just got a whole lot easier—and tastier.

Breakfast Sausage Casserole made easy and delicious