Christmas morning is all about family, warmth, and of course, delicious food! I still remember the first time my son, Jake, helped me make this Delicious Breakfast Casserole. He was so excited to crack the eggs and sprinkle the cheese that we ended up with more cheese on the floor than in the dish! This casserole is the perfect way to start your holiday celebrations.
Table of Contents
Why You’ll Love It
- It’s a Make Ahead Breakfast Casserole, so you can prep it the night before.
- Loaded with cheese and your favorite breakfast meats, it’s the Best Breakfast Casserole you’ll ever taste.
- It feeds a crowd, making it perfect for holiday gatherings.
- You can customize it with different veggies or meats to suit everyone’s taste.
Pure Comfort
There’s something magical about a warm, cheesy casserole fresh out of the oven. It fills the house with a delightful aroma that wraps around you like a cozy blanket. Every bite is a reminder of family traditions and joyful mornings spent together, making it pure comfort food that everyone loves.
What You Need
- 1 1 lb breakfast sausage – You can substitute with turkey sausage for a lighter option.
- 1 1 large yellow onion, diced – Shallots can be used for a milder flavor.
- 1 1 bell pepper, diced – Feel free to use any color bell pepper.
- 6 6 large eggs – Egg whites can be used for a healthier version.
- 2 2 cups milk – Almond milk works well for a dairy-free option.
- 1 1 tsp salt – Adjust to taste.
- 1/2 1/2 tsp black pepper – Add more for a spicier kick.
- 4 4 cups cubed bread (stale works best) – You can use any type of bread, like sourdough or whole wheat.
- 2 2 cups shredded cheese (cheddar or your favorite) – Mix different cheeses for a unique flavor.
Time to Cook
Prep: 15 minutes | Cook: 45 minutes | Total: 1 hour | Difficulty: Easy | Make-Ahead: Yes, prepare it the night before and refrigerate.
Steps to Make It
- Preheat your oven to 350°F. The smell of a warm oven is the first hint of deliciousness to come.
- In a large skillet, brown the sausage over medium heat until fully cooked. It should be golden brown and fragrant.
- Add the diced onion and bell pepper to the skillet. Sauté until they’re soft, about 5 minutes, and the colors are vibrant.
- In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined. The mixture should be smooth and creamy.
- Stir in the cubed bread and the cooked sausage mixture. Make sure everything is coated in that eggy goodness.
- Fold in the shredded cheese, reserving a bit for topping. It should look cheesy and inviting.
- Pour the mixture into a greased 9×13 inch baking dish. Spread it evenly and sprinkle the reserved cheese on top.
- Bake in the preheated oven for about 45 minutes. It should be puffed up and golden brown when done.
- Let it cool for a few minutes before slicing. The cheese will be ooey-gooey and delicious!
- Serve warm and watch everyone dig in with smiles!
Make It Perfect
- Use stale bread for the best texture; it soaks up the egg mixture beautifully.
- Let the casserole sit for at least 10 minutes before serving to firm up.
- Feel free to mix in your favorite veggies or leftover meats for added flavor.
- Cover with foil for the first 30 minutes of baking to prevent over-browning.
- Garnish with fresh herbs like parsley or chives for a pop of color.
Mix It Up
- Add spinach and feta for a Mediterranean twist.
- Try using chorizo instead of sausage for a spicy kick.
- Mix in some diced tomatoes and basil for a fresh, summery flavor.
Perfect Partners
- Serve with fresh fruit salad for a refreshing side.
- Pair with a warm cup of coffee or hot chocolate.
- Add a light green salad for a balanced meal.
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FAQs
Can I make this casserole ahead of time?
Absolutely! Prepare it the night before and refrigerate.
How do I store leftovers?
Keep leftovers in an airtight container in the fridge for up to 3 days.
Can I freeze this casserole?
Yes, it freezes well. Just thaw and reheat when you’re ready to enjoy.
What can I substitute for the cheese?
You can use dairy-free cheese or skip it altogether.
Can I add more vegetables?
Definitely! Feel free to add any veggies you like.
Conclusion
This Delicious Breakfast Casserole is sure to become a cherished part of your holiday traditions. With its cheesy goodness and ease of preparation, it’s the perfect dish to share with family and friends. So, gather around the table and enjoy every bite of this Best Breakfast Casserole!

Delicious Breakfast Casserole for Christmas Morning
Ingredients
Equipment
Method
- Preheat your oven to 350°F.
- In a large skillet, brown the sausage over medium heat until fully cooked.
- Add the diced onion and bell pepper to the skillet and sauté until soft.
- In a large bowl, whisk together the eggs, milk, salt, and pepper until smooth.
- Stir in the cubed bread and the cooked sausage mixture.
- Fold in the shredded cheese, reserving some for topping.
- Pour the mixture into a greased 9×13 inch baking dish and sprinkle with reserved cheese.
- Bake for about 45 minutes until puffed and golden brown.
- Let cool for a few minutes before slicing and serving warm.