There is honestly nothing better than waking up on a holiday morning knowing breakfast is already sorted. This hearty bake is my go-to secret weapon for keeping everyone happy while we open presents. It’s packed with savory sausage, crisp peppers, and melting cheddar, bringing the whole family to the kitchen with almost zero effort on the big day. Whether you’re feeding a hungry crowd or just want a cozy start to your winter morning, this casserole delivers comfort in every bite. I can't wait for you to try it!
Key Ingredients
Let’s talk about what goes into this pan of goodness. This recipe relies on humble, everyday staples to create that classic holiday flavor profile we all crave. You don't need anything fancy, just fresh basics that come together to create a fluffy, golden masterpiece. Here is everything you need to get started:
- 1 lb breakfast sausage: This provides the savory base of the dish, and breaking it down ensures you get a meaty bite in every forkful.
- 1 cup diced onion: An aromatic essential that sweetens slightly as it cooks, adding depth to the savory mix.
- 1 cup diced bell peppers (red or green): These add a fantastic crunch and festive color to the casserole, making it look as good as it tastes.
- 8 large eggs: The star binder of the show, these fluff up beautifully in the oven to hold all the delicious ingredients together.
- 2 cups milk: This adds creaminess to the egg mixture, ensuring the final bake is tender rather than rubbery.
- 1 teaspoon salt: Essential for waking up all the other flavors in the dish so it doesn't taste flat.
- 1/2 teaspoon black pepper: Adds just the right amount of gentle heat to balance the richness of the cheese and eggs.
- 1/2 teaspoon garlic powder: Provides that savory, umami background note that makes the kitchen smell amazing.
- 1/2 teaspoon dried mustard: The secret weapon that adds a subtle tang and cuts through the richness of the sausage and cheese.
- 1 cup shredded cheddar cheese: Melts into ooey-gooey pockets of deliciousness throughout the casserole.
- 1 cup frozen hash browns: These add heartiness and texture, soaking up the egg mixture to make the dish truly filling.
- Fresh parsley or chives for garnish (optional): A sprinkle of green at the end adds freshness and makes the dish look professionally plated.
How To Make Christmas Breakfast Casserole
This recipe is a total breeze, which is exactly what we need during the holiday chaos! It is essentially a brown, mix, and bake situation. You will start by getting the meat and veggies cooked off to build a solid flavor foundation, then create a simple custard with your eggs and spices. The real magic happens when everything gets tossed together and the oven does the heavy lifting, filling your home with warmth.
1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish generously with cooking spray or butter to ensure nothing sticks.
2. In a skillet over medium heat, cook the breakfast sausage until it is browned and fully cooked. Be sure to break it apart into small pieces with a spatula as it cooks so it distributes evenly later. Once done, remove the sausage from the skillet and set aside. Drain excess grease if necessary.
3. In the same skillet, add the diced onion and bell peppers. Sauté them for about 5-7 minutes until the vegetables are softened and fragrant. Remove from heat and let them cool slightly so they don't scramble the raw eggs later.
4. In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, garlic powder, and dried mustard until the mixture is well combined and frothy.
5. Stir in the cooked sausage, sautéed vegetables, shredded cheddar cheese, and frozen hash browns to the egg mixture until everything is evenly distributed.
6. Pour the mixture into the prepared baking dish, spreading it out evenly with a spatula to ensure a level bake.
7. Bake in the preheated oven for 40-45 minutes, or until the casserole is set in the center (no longer jiggly) and slightly golden on top.
8. Remove from the oven and allow the casserole to rest for 5-10 minutes before slicing. This helps the layers set up. Garnish with fresh parsley or chives if desired before serving.
Serving Suggestions
While this casserole is a complete meal on its own, dressing up the table makes brunch feel extra special. I love pairing the savory, rich flavors of the sausage and cheese with something light or sweet to balance out the palate. Since the oven is doing the work for the main dish, you have plenty of time to set up a few sides that will really wow your guests.
- Fresh Fruit Salad: Serve a bowl of seasonal fruit like citrus or berries on the side; the acidity and sweetness provide a perfect contrast to the savory sausage and cheese.
- Hot Coffee Station: Nothing pairs better with a warm egg bake than a hot cup of coffee, so set up a station with mugs, cream, and sugar for a cozy holiday brunch vibe.
- Sweet Pastries: If you have a sweet tooth, offer a basket of muffins or cinnamon rolls to complement the salty, savory elements of the egg bake.
- Salsa and Hot Sauce: For guests who love heat, place a few bottles of hot sauce or a bowl of fresh salsa on the table to drizzle over their slice for an extra flavor kick.
Tips For Perfect Christmas Breakfast Casserole
I have made this dish more times than I can count, and I have learned a few tricks along the way to ensure it comes out perfect every single time. The beauty of this recipe is its forgiveness; you really can't mess it up, but these little pointers help elevate it from good to great. Here is how to get the most out of your holiday breakfast:
- Make Ahead Magic: This casserole can be assembled the night before and baked in the morning for a quick and easy breakfast, saving you stress on the big day.
- Customize It: Feel free to customize the casserole by adding your favorite vegetables or swapping the cheese to suit your family's taste buds.
- Bring the Heat: For a spicier kick, add diced jalapeños or use spicy breakfast sausage instead of the regular variety.
- Leftover Love: Leftovers can be stored in the refrigerator for up to 3 days and reheated in the microwave, making for an excellent quick lunch.
- Feed the Masses: This dish is perfect for holiday gatherings and can serve a crowd, so don't worry about anyone going hungry!
How To Store It
If you are lucky enough to have leftovers, you are in for a treat because this tastes just as good the next day! Proper storage is key to keeping that texture right so you don't end up with a soggy breakfast. Since this hearty bake holds up so well, I often meal prep it just to have easy mornings later in the week.
- Refrigerate Promptly: Allow the casserole to cool completely, then cover the dish tightly or transfer slices to an airtight container; store in the refrigerator for up to 3 days.
- Microwave Reheating: To eat, simply place a slice on a microwave-safe plate and heat it in the microwave until warmed through, which keeps the eggs fluffy.
- Portion Control: I recommend slicing the entire casserole before storing it, so you can easily grab single servings right from the refrigerator without making a mess.
- Labeling: If your fridge is packed with holiday food, use a label with the date so you know exactly when to finish your leftovers by.
Frequently Asked Questions
I know trying a new recipe for a holiday can be a little nerve-wracking, so here are the answers to the most common questions I get about this dish!
- Q: Can this casserole be prepared in advance?
A: Yes, this casserole can be assembled the night before and baked in the morning for a quick and easy breakfast.
- Q: What are the baking instructions for this dish?
A: You should bake the casserole in an oven preheated to 350°F (175°C) for 40-45 minutes, or until the center is set and the top is slightly golden.
- Q: How should leftovers be stored and reheated?
A: Leftovers can be stored in the refrigerator for up to 3 days and can be reheated in the microwave.
- Q: Can I customize the ingredients or make the dish spicier?
A: Yes, you can customize the casserole by adding your favorite vegetables or swapping the cheese. For a spicier kick, you can add diced jalapeños or use spicy breakfast sausage.
- Q: Do I need to cook the sausage and vegetables before adding them to the egg mixture?
A: Yes, the breakfast sausage needs to be browned and fully cooked, and the diced onion and bell peppers should be sautéed for about 5-7 minutes until softened before they are mixed with the eggs.
- Q: Should the hash browns be cooked before assembling the casserole?
A: No, the recipe calls for adding 1 cup of frozen hash browns directly into the egg mixture along with the cooked meat, vegetables, and cheese.
What Makes This Special
This recipe works because it saves your sanity on Christmas morning! It is the hero we all need when wrapping paper is flying everywhere and the coffee hasn't kicked in yet. The combination of savory sausage, tender veggies, and that golden cheesy crust is just unbeatable comfort food. Go ahead and hit print or save this page because you are going to want this in your back pocket for every holiday brunch moving forward. If you give it a try, drop me a comment below—I would love to hear if you stuck to the recipe or went rogue with some spicy sausage!
Christmas Breakfast Casserole
Description
Savory sausage and tender veggies mingle with fluffy eggs and hash browns in this golden, cheesy bake. Perfect for feeding a crowd, it fills the kitchen with warmth on chilly mornings.
Ingredients
Instructions
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Preheat your oven to 350°F (175°C). Grease a 9x13 inch baking dish with cooking spray or butter.
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In a skillet over medium heat, cook the breakfast sausage until browned and fully cooked. Break it apart into small pieces with a spatula as it cooks. Once done, remove the sausage from the skillet and set aside. Drain excess grease if necessary.
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In the same skillet, add diced onion and bell peppers. Sauté for about 5-7 minutes until the vegetables are softened. Remove from heat and let cool slightly.
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In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, garlic powder, and dried mustard until well combined.
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Stir in the cooked sausage, sautéed vegetables, shredded cheddar cheese, and frozen hash browns to the egg mixture until everything is evenly distributed.
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Pour the mixture into the prepared baking dish, spreading it out evenly.
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Bake in the preheated oven for 40-45 minutes, or until the casserole is set in the center and slightly golden on top.
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Remove from the oven and allow the casserole to rest for 5-10 minutes before slicing. Garnish with fresh parsley or chives if desired before serving.
Note
- This casserole can be assembled the night before and baked in the morning for a quick and easy breakfast.
- Feel free to customize the casserole by adding your favorite vegetables or swapping the cheese.
- For a spicier kick, add diced jalapenos or use spicy breakfast sausage.
- Leftovers can be stored in the refrigerator for up to 3 days and reheated in the microwave.
- This dish is perfect for holiday gatherings and can serve a crowd!
