This easy Breakfast Casserole is the ultimate morning comfort food. It’s a savory, crowd-pleasing dish packed with eggs, sausage, cheese, and bread, all baked into a golden, bubbly masterpiece. Whether you’re planning a special holiday brunch, a weekend family gathering, or simply want a delicious make-ahead meal for busy mornings, this recipe is your new go-to. It’s incredibly simple to assemble and can even be prepped the night before!
We’ve designed this recipe to be foolproof and endlessly customizable. Forget complicated steps and unnecessary ingredients. This is the simple, hearty, and delicious breakfast bake you’ve been searching for. It comes out of the oven perfectly cooked every time, ready to serve a hungry crowd.
Why This is the Best Breakfast Casserole Recipe
In a world of complicated recipes, this one stands out for its simplicity and incredible flavor. It’s a true one-pan wonder that minimizes work while maximizing taste. Here’s why you’ll love it:
- Make-Ahead Friendly: Assemble it the night before and just pop it in the oven in the morning. It’s the definition of stress-free hosting.
- Crowd-Pleaser: This recipe easily serves 8-10 people, making it perfect for holidays, potlucks, or family breakfasts.
- Completely Customizable: Swap the sausage for bacon, add your favorite veggies, or use a different kind of cheese. We’ll cover all the best variations below.
- Simple Ingredients: Made with easy-to-find ingredients, you probably have most of what you need in your kitchen right now.
Key Ingredients You’ll Need
The magic of this casserole lies in its simple yet powerful combination of ingredients. Each one plays a crucial role in creating the perfect texture and flavor.
- Pork Sausage: Provides a savory, hearty flavor that is the backbone of the casserole.
- Bread: Day-old bread is perfect as it soaks up the egg mixture without getting mushy. Sourdough, brioche, or a simple white loaf works great.
- Eggs: The essential binder that creates the custardy texture.
- Milk & Heavy Cream: A combination of milk and cream creates a rich, tender custard. Whole milk is recommended for the best results.
- Cheddar Cheese: Sharp cheddar adds a tangy flavor, but feel free to use your favorite melting cheese.
- Seasonings: Simple salt, pepper, and dry mustard are all you need to elevate the flavors.
Step-by-Step Instructions
Making this breakfast casserole is as easy as 1-2-3. Follow these simple steps for a perfect result every time.
- Cook the Sausage: In a large skillet, cook the pork sausage over medium-high heat until browned and crumbled. Drain off any excess grease and set it aside.
- Prepare the Base: Grease a 9×13 inch baking dish. Arrange the bread cubes in an even layer across the bottom. Sprinkle the cooked sausage and half of the shredded cheese over the bread.
- Mix the Custard: In a large bowl, whisk together the eggs, milk, heavy cream, dry mustard, salt, and pepper until well combined.
- Assemble the Casserole: Pour the egg mixture evenly over the bread, sausage, and cheese in the baking dish. Gently press down on the bread to ensure it soaks up the liquid. Top with the remaining cheese.
- Bake or Chill: At this point, you can either cover and refrigerate the casserole overnight or bake it right away. To bake, preheat your oven to 350°F (175°C) and bake uncovered for 45-55 minutes, or until the center is set and the top is golden brown.
- Rest and Serve: Let the casserole rest for 10 minutes before slicing and serving. This helps it hold its shape.
Easy Variations & Customizations
One of the best things about this Breakfast Casserole is how easy it is to adapt. Here are a few popular variations to try:
- Bacon or Ham: Swap the sausage for a pound of cooked, crumbled bacon or diced ham.
- Vegetarian: Omit the meat and add 1-2 cups of sautéed vegetables like bell peppers, onions, spinach, or mushrooms.
- Different Cheeses: Try a mix of Monterey Jack and cheddar, or add some Gruyère for a nutty flavor.
- Spicy Version: Add a dash of hot sauce to the egg mixture or use spicy sausage for a kick.
While this is a savory dish, if you’re planning a full brunch spread, consider adding something sweet like our famous fluffy pancake recipe to the menu!
Make-Ahead & Storing Instructions
This casserole is a lifesaver for busy mornings. For another great make-ahead meal idea, check out our delicious crack chicken casserole.
- Overnight Option: To make this an overnight breakfast casserole, assemble it completely, cover it tightly with plastic wrap or foil, and refrigerate for up to 24 hours. The next morning, just remove it from the fridge while the oven preheats and bake as directed.
- Storing Leftovers: Store any leftovers in an airtight container in the refrigerator for up to 4 days.
- Reheating: Reheat individual slices in the microwave for 1-2 minutes or until warmed through. You can also reheat the entire casserole in a 325°F oven for about 20 minutes.
- Freezing: You can freeze the baked casserole for up to 3 months. Let it cool completely, then cover it tightly with plastic wrap and foil. Thaw it overnight in the refrigerator before reheating.
Frequently Asked Questions
Yes, this casserole freezes well. Bake the casserole as directed and let it cool completely. Cover it tightly with both plastic wrap and aluminum foil and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating in the oven.
Absolutely! This recipe is perfect for making ahead. You can assemble the entire casserole, cover it, and refrigerate it for up to 24 hours before baking. This allows the bread to soak up the custard for an even better texture.
The key to avoiding a soggy casserole is using day-old or slightly stale bread, which is drier and absorbs the egg mixture better. Also, ensure you have the right ratio of liquid to bread. Our recipe is balanced to prevent sogginess.
Leftover breakfast casserole can be stored in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave for a quick and easy breakfast.
You can easily substitute the sausage with 1 lb of cooked and crumbled bacon, diced ham, or turkey sausage. For a vegetarian option, use 1-2 cups of sautéed vegetables like mushrooms, spinach, onions, and bell peppers.
The Ultimate Breakfast Casserole Recipe
Breakfast Casserole: The Only Recipe You'll Need
Ingredients
Equipment
Instructions
- In a large skillet, cook the pork sausage over medium-high heat until browned. Drain excess grease.
- Grease a 9x13 inch baking dish. Spread the bread cubes in an even layer. Top with the cooked sausage and 1 cup of shredded cheese.
- In a large bowl, whisk together the eggs, milk, heavy cream, dry mustard, salt, and pepper.
- Pour the egg mixture evenly over the layers in the baking dish. Top with the remaining 1 cup of cheese.
- Cover and refrigerate for at least 4 hours or overnight. If baking immediately, preheat oven to 350°F (175°C).
- Bake uncovered for 45-55 minutes, until the center is set (a knife inserted comes out clean) and the top is golden and bubbly.
- Let the casserole stand for 10 minutes before slicing and serving to allow it to set.
Notes
Feel free to add sautéed vegetables like onions or bell peppers for extra flavor and nutrition.
Share This Recipe!
We hope you love this easy and delicious Breakfast Casserole as much as we do! If you make it, be sure to leave a comment and rating below. And don’t forget to share your creations with us on Pinterest!
