This hearty Country Breakfast Casserole is packed with eggs, sausage, and cheese—perfect for a cozy morning! It’s like a big hug on a plate, filling and delicious.
What’s great about this casserole is how easy it is to make ahead of time. You can whip it up the night before and bake it in the morning. Breakfast is served with minimal fuss!
Key Ingredients & Substitutions
White Bread: For the base of this casserole, I always opt for white bread. It soaks up the egg mixture nicely. If you’re looking for a healthier option, try whole wheat or sourdough. Just be aware that different breads may alter the texture a bit.
Breakfast Sausage: I use pork sausage for its rich flavor, but turkey or chicken sausage works great too for a lighter choice. For a vegetarian option, try using mushrooms or a veggie sausage crumble.
Cheddar Cheese: Sharp cheddar adds great flavor, but feel free to mix in other cheeses like Monterey Jack or pepper jack for a little kick. If you’re dairy-free, look for a plant-based cheese alternative!
Eggs: The eggs are crucial for binding everything together. If you need a substitute due to allergies or dietary preferences, you can try a mixture of silken tofu or a commercial egg replacer in similar quantities.
How Can I Make Sure My Casserole Sets Perfectly?
The key to a well-set casserole is letting the bread soak up the egg mixture thoroughly. This is especially important if you’re preparing it ahead of time. Here’s how to get it just right:
- After pouring the egg mixture over the bread and sausage, gently press down on the bread cubes. This helps them absorb the liquid evenly.
- For best results, let the casserole sit for at least 30 minutes before baking, or even overnight in the fridge. This ensures a creamier texture.
- Bake it uncovered to allow the top to brown nicely. If it begins to brown too quickly, you can cover it loosely with foil.

Country Breakfast Casserole
Ingredients You’ll Need:
Base Ingredients:
- 8 slices of white bread, crusts removed and cubed
- 1 pound breakfast sausage, cooked and crumbled
- 8 large eggs
- 2 cups milk
- 1 teaspoon salt
- 1/2 teaspoon black pepper
Cheesy Topping:
- 2 cups shredded cheddar cheese
- 1/4 cup chopped green onions (optional, for garnish)
Extras:
- 1 teaspoon dry mustard powder (optional, for flavor depth)
- Butter or cooking spray (for greasing the baking dish)
Time Needed:
This Country Breakfast Casserole will take you about 20 minutes to prepare and around 45-50 minutes to bake. If you choose to let it sit overnight in the fridge, it can save you time in the morning. Altogether, you’ll have a delicious breakfast casserole ready in about 1 hour and 10 minutes, making it perfect for weekend brunch or gatherings!
Step-by-Step Instructions:
1. Prepping the Oven and Dish:
First things first, preheat your oven to 350°F (175°C). While that’s warming up, grab a 9×13 inch baking dish and grease it well with butter or cooking spray. This will keep your casserole from sticking.
2. Adding the Bread:
Take the cubed bread and spread it evenly across the bottom of the prepared baking dish. It’s okay if some pieces overlap; we just want to create a nice base for all the flavors to come!
3. Cooking the Sausage:
Heat a skillet over medium heat and add your breakfast sausage. Cook it until it’s fully browned and crumbly, stirring occasionally. Once it’s done, drain any extra fat. Sprinkle the cooked sausage evenly over the cubed bread in the baking dish.
4. Mixing the Egg Mixture:
In a large mixing bowl, whisk together the eggs, milk, salt, pepper, and dry mustard powder (if you’re using it). Keep whisking until everything is well combined and fluffy.
5. Soaking it All Up:
Now, pour the egg mixture over the bread and sausage. Make sure to distribute it evenly—gently press down on the bread cubes with a spatula to help them soak up the liquid.
6. Adding Cheese:
Sprinkle 1 1/2 cups of the shredded cheddar cheese generously over the top. This is where the magic begins—cheesy goodness!
7. Baking Time:
Pop the dish into your preheated oven and bake uncovered for 45 to 50 minutes. You’ll know it’s done when the casserole is set in the middle and the top is golden brown. Yum!
8. Finishing Touches:
Once out of the oven, sprinkle the remaining 1/2 cup of cheddar cheese on top. Allow it to rest for about 5 minutes. This gives the cheese a chance to melt beautifully.
9. Garnishing:
Before serving, sprinkle with chopped green onions for a fresh touch and a pop of color.
10. Enjoy!
Serve warm and enjoy your hearty Country Breakfast Casserole! This delightful dish is sure to be a hit with family and friends.
Remember, you can prepare it the night before and let it sit in the fridge overnight. Just pop it in the oven in the morning for an effortless breakfast!
Can I Use Whole Wheat Bread Instead of White Bread?
Absolutely! Whole wheat bread is a great substitute and adds a nutty flavor plus a bit more nutrition. Just keep in mind that it may give the casserole a denser texture than white bread.
Can I Make This Casserole Vegetarian?
Yes, you can easily make it vegetarian! Substitute the breakfast sausage with a meat alternative, like veggie sausage or sautéed mushrooms. You can also add extra vegetables like bell peppers or spinach for added flavor and nutrition.
How Should I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply pop it in the microwave or warm it in the oven at 350°F (175°C) until heated through.
Can I Freeze This Casserole?
Yes! You can freeze it before baking by assembling everything, then covering it tightly and freezing for up to 2 months. When you’re ready to eat, thaw it in the fridge overnight and bake as directed.



