This Christmas Breakfast Casserole is a savory, creamy dish that brings warmth and joy to your holiday mornings. It’s simple, hearty, and perfect for gathering around the table with loved ones.
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Christmas Breakfast Casserole
This delicious casserole combines fluffy bread, cooked sausage, and cheesy goodness, making it a festive favorite. Plus, it’s easy to prepare and can feed a crowd, so it’s great for holiday gatherings.

Ingredients
Main Ingredients
- 1 loaf of bread, cubed
- 8 large eggs, at room temperature
- 2 cups of milk
- 1 teaspoon of salt
- 1 teaspoon of black pepper
- 2 cups of shredded cheese (cheddar or mozzarella)
- 1 pound of cooked and crumbled breakfast sausage
- 1 cup of diced bell peppers
- 1 cup of diced onion
- 1 tablespoon of olive oil
Optional Ingredients
- Spices like nutmeg or cinnamon
- Sautéed vegetables for extra nutrition
- Fruits like apples or pears for a sweeter version
Instructions
Prepping the Ingredients
Start by preheating your oven to 350°F (175°C). In a large bowl, whisk together the eggs, milk, salt, and black pepper until well combined, about one minute. Meanwhile, heat the olive oil in a skillet over medium heat.
Mixing the Egg Mixture
Once the oil is hot, add the diced bell peppers and onion. Sauté until soft and translucent, about 5-7 minutes. Combine this mixture with the cooked sausage and pour it into the egg mixture, stirring gently to combine.
Assembling the Casserole
Grease a 9×13 inch baking dish. Layer the cubed bread evenly across the bottom. Pour the egg and sausage mixture over the bread, making sure each piece is well-soaked. Finally, sprinkle the shredded cheese on top.
Baking the Casserole
Bake for 40-45 minutes, or until the casserole is set and the top is golden brown. A knife inserted in the center should come out clean. Allow it to rest for 10 minutes before serving, letting the flavors meld beautifully.
Expert Tips
Choosing the Right Bread
For best results, use sturdy bread like sourdough or ciabatta. This helps prevent sogginess while maintaining a delightful texture.
Letting the Casserole Rest
Letting the casserole sit for at least 30 minutes (or even overnight) in the refrigerator enhances its flavor and texture, making it even more scrumptious.
Experimenting with Flavors
Feel free to experiment! Adding spices like nutmeg or cinnamon can enhance the dish’s warmth. You can also incorporate different vegetables or meats for a personalized touch.
Storage Instructions
Room Temperature Storage
Let the casserole sit at room temperature for up to 2 hours before refrigerating if you’re not serving it right away.
Refrigeration Guidelines
Store any leftovers in an airtight container in the refrigerator for up to 3 days. This makes for a quick and delicious breakfast anytime!
Freezing the Casserole
If you want to prepare it ahead, you can freeze the unbaked casserole for up to 2 months. Just thaw it in the refrigerator overnight before baking.
Recipe Variations
Adding Vegetables
Add extra nutrition by mixing in sautéed vegetables such as spinach or zucchini for a colorful twist.
Including Different Meats
For a heartier dish, include meats like bacon or ham. They add a savory richness that pairs perfectly with the eggs and cheese.
Gluten-Free Options
If you need a gluten-free option, simply swap out the regular bread for gluten-free bread to suit dietary needs.
Sweet Variations
For a sweeter version, consider adding fruits like apples or pears, which pair wonderfully with the savory ingredients.
Serving Suggestions
Pairing with Beverages
This casserole goes wonderfully with fresh fruit, pastries, or beverages like mimosas and hot chocolate, making your breakfast even more festive.
Garnishing Ideas
Top with fresh herbs like parsley or chives for a vibrant finish. This adds a pop of color and a burst of flavor.
FAQs
What ingredients are needed for this casserole?
You will need bread, eggs, milk, cheese, breakfast sausage, bell peppers, onions, salt, and black pepper. Optional ingredients include spices and additional vegetables or fruits.
Can this casserole be made in advance?
Yes, you can prepare this casserole the night before and refrigerate it until you are ready to bake it the next day.
How long does it take to prepare and cook?
The total time for this casserole is about 1 hour, with approximately 15 minutes of prep and 40-45 minutes of cooking time.
Is this recipe suitable for a large group?
Absolutely! This casserole is designed to serve a crowd, making it perfect for family gatherings or holiday breakfasts.
What are some variations to customize the casserole?
You can add vegetables, different meats, or even fruits to customize this casserole to your liking.
Related Recipes to try
Conclusion
This Christmas Breakfast Casserole is a delightful way to kick off your holiday festivities. For more inspiration, check out our Pinterest page where you’ll find an array of festive recipes and ideas to make your celebrations even more special.

Christmas Breakfast Casserole: A Cozy Family Delight
Equipment
- oven
- large bowl
- skillet
- 9×13-inch baking dish
Ingredients
- 1 loaf bread, cubed
- 8 large eggs at room temperature
- 2 cups milk
- 1 teaspoon salt
- 1 teaspoon black pepper
- 2 cups shredded cheese cheddar or mozzarella
- 1 pound cooked and crumbled breakfast sausage
- 1 cup diced bell peppers
- 1 cup diced onion
- 1 tablespoon olive oil
Instructions
- Preheat the oven to 350°F (175°C).
- Whisk eggs, milk, salt, and black pepper in a large bowl until combined.
- Sauté diced bell peppers and onion in olive oil until soft, about 5-7 minutes.
- Combine cooked sausage and sautéed vegetables with the egg mixture.
- Layer cubed bread in a greased 9×13 inch baking dish and pour the egg mixture over it.
- Sprinkle shredded cheese on top and bake for 40-45 minutes until set and golden.
- Let the casserole rest for 10 minutes before serving.