This Christmas breakfast sausage casserole is a hearty and delicious way to start your holiday morning. Combining savory sausage, fluffy eggs, and melted cheese, this dish is sure to become a family favorite. It's easy to prepare and perfect for feeding a crowd, making it an ideal choice for festive gatherings.
While most of the ingredients for this recipe are common pantry staples, you might need to pick up dry mustard if you don't already have it on hand. This spice adds a subtle tangy flavor that enhances the overall taste of the casserole. Make sure to also grab a good quality cheddar cheese for the best results.

Ingredients For Christmas Breakfast Sausage Casserole
Sausage: Provides a savory and hearty flavor base for the casserole.
Eggs: Bind the ingredients together and add richness.
Milk: Adds creaminess and helps to create a custard-like texture.
Salt: Enhances the flavors of the other ingredients.
Dry mustard: Adds a subtle tangy flavor that complements the sausage.
Bread: Absorbs the egg mixture and provides structure to the casserole.
Cheddar cheese: Melts into the casserole, adding a rich and creamy texture.
Technique Tip for Making This Holiday Casserole
When browning the sausage, make sure to break it up into small, even pieces to ensure it cooks thoroughly and evenly. This will also help distribute the flavor more uniformly throughout the casserole. Additionally, allow the bread cubes to soak in the egg mixture for a few minutes before combining with the other ingredients. This ensures the bread absorbs the liquid fully, resulting in a more cohesive and flavorful dish.
Suggested Side Dishes
Alternative Ingredients
breakfast sausage - Substitute with turkey sausage: Provides a leaner option with similar flavor and texture.
breakfast sausage - Substitute with vegetarian sausage: Suitable for a vegetarian diet while maintaining the sausage flavor.
eggs - Substitute with egg substitute: Ideal for those with egg allergies or following a vegan diet.
eggs - Substitute with flaxseed meal and water mixture: A vegan alternative that mimics the binding properties of eggs.
milk - Substitute with almond milk: A dairy-free option that works well in casseroles.
milk - Substitute with oat milk: Another dairy-free alternative that adds a creamy texture.
salt - Substitute with soy sauce: Adds a salty flavor with a hint of umami.
salt - Substitute with sea salt: A more natural option that can enhance the flavor.
dry mustard - Substitute with prepared mustard: Provides a similar tangy flavor, though you may need to adjust the quantity.
dry mustard - Substitute with horseradish: Adds a spicy kick, though it should be used sparingly.
bread - Substitute with gluten-free bread: Suitable for those with gluten intolerance or celiac disease.
bread - Substitute with cornbread: Adds a slightly sweet and crumbly texture.
cheddar cheese - Substitute with mozzarella cheese: Offers a milder flavor and melts well.
cheddar cheese - Substitute with vegan cheese: A dairy-free option that mimics the texture and flavor of cheddar.
Other Alternative Recipes Similar to This Breakfast Casserole
How to Store or Freeze This Breakfast Casserole
- Allow the casserole to cool completely after baking. This prevents condensation and sogginess when stored.
- Cover the baking dish tightly with aluminum foil or plastic wrap. Alternatively, transfer the casserole to an airtight container.
- Store in the refrigerator for up to 3-4 days. Ensure the temperature is consistently below 40°F (4°C) to maintain freshness.
- For longer storage, consider freezing the casserole. Wrap it tightly with plastic wrap, then cover with aluminum foil to prevent freezer burn.
- Label the package with the date to keep track of its freshness. The casserole can be frozen for up to 2-3 months.
- To reheat, thaw the casserole in the refrigerator overnight if frozen. This ensures even reheating and prevents the eggs from becoming rubbery.
- Preheat your oven to 350°F (175°C). Remove any plastic wrap and cover the casserole with aluminum foil.
- Bake for 20-30 minutes or until heated through. If you prefer a crispy top, remove the foil during the last 10 minutes of reheating.
- For individual servings, microwave on medium power in a microwave-safe dish. Cover with a microwave-safe lid or damp paper towel to retain moisture.
- Always check the internal temperature of the casserole to ensure it reaches at least 165°F (74°C) before serving.
How to Reheat Leftovers
- Preheat your oven to 350°F (175°C). Place the leftover Christmas Breakfast Sausage Casserole in an oven-safe dish, cover with aluminum foil to prevent drying, and bake for 20-25 minutes until heated through.
- For a quicker option, use the microwave. Place a portion of the casserole on a microwave-safe plate, cover with a microwave-safe lid or another plate, and heat on medium power for 2-3 minutes. Check and stir halfway through to ensure even heating.
- If you prefer a crispy top, use a toaster oven. Preheat the toaster oven to 350°F (175°C), place the casserole in an oven-safe dish, and heat for 15-20 minutes until warmed and the top is slightly crispy.
- For stovetop reheating, use a non-stick skillet over medium-low heat. Add a small amount of butter or olive oil to the skillet, place the casserole portion in, and cover with a lid. Heat for 5-7 minutes, stirring occasionally to prevent sticking and ensure even warming.
Best Tools for Making This Holiday Casserole
Oven: Used to bake the casserole at 350°F (175°C) until it is set and golden brown.
Skillet: Used to cook the breakfast sausage over medium heat until browned.
Mixing bowl: Used to whisk together the eggs, milk, salt, and dry mustard, and to combine all ingredients.
Whisk: Used to mix the eggs, milk, salt, and dry mustard together in the mixing bowl.
Measuring cups: Used to measure out the milk and shredded cheese accurately.
Measuring spoons: Used to measure the salt and dry mustard.
Knife: Used to cube the bread slices.
Cutting board: Used as a surface to cube the bread.
Baking dish: A 9x13 inch dish used to bake the casserole.
Cheese grater: Used to shred the cheddar cheese if it is not pre-shredded.
Spatula: Used to stir the ingredients together in the mixing bowl.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
How to Save Time on Making This Sausage Casserole
Prepare ingredients ahead: Cook the sausage and cube the bread the night before to save time in the morning.
Use pre-shredded cheese: Opt for pre-shredded cheddar cheese to cut down on prep time.
Mix in one bowl: Combine eggs, milk, salt, and dry mustard in one bowl to minimize cleanup.
Assemble the night before: Assemble the casserole the night before and refrigerate. Just bake in the morning.
Line the baking dish: Use parchment paper to line the baking dish for easy cleanup.

Christmas Breakfast Sausage Casserole
Ingredients
Main Ingredients
- 1 pound Breakfast sausage
- 6 Eggs
- 2 cups Milk
- 1 teaspoon Salt
- 1 teaspoon Dry mustard
- 6 slices Bread, cubed
- 2 cups Cheddar cheese, shredded
Instructions
- Preheat oven to 350°F (175°C).
- In a skillet, cook sausage over medium heat until browned. Drain and set aside.
- In a large mixing bowl, whisk together eggs, milk, salt, and dry mustard.
- Stir in the cubed bread, cooked sausage, and 1 ½ cups of the shredded cheese.
- Pour mixture into a greased 9x13 inch baking dish. Top with remaining cheese.
- Bake in preheated oven for 45 minutes, or until set and golden brown.
Nutritional Value
Keywords
More Amazing Recipes to Try 🙂
- Teriyaki Sauce Recipe15 Minutes
- Clotted Cream Recipe12 Hours 10 Minutes
- Chicken Brine Recipe10 Minutes
- White Chicken Chili Recipe45 Minutes
- BBQ Sauce Recipe30 Minutes
- Fajita Seasoning Recipe5 Minutes
- Garlic Aioli Recipe10 Minutes
- Salmon Recipe30 Minutes
Leave a Reply