Overnight Christmas Breakfast Casserole with Canadian Bacon and Cheddar Recipe

If you’re looking for a cozy, mouthwatering start to your holiday morning, the Overnight Christmas Breakfast Casserole with Canadian Bacon and Cheddar Recipe is your new best friend. This classic make-ahead dish combines layers of perfectly toasted bread, savory Canadian bacon, sharp cheddar cheese, and a flavorful egg custard infused with colorful bell peppers and just the right amount of spice. Simply assemble it the night before, let the magic happen in the fridge, and pop it in the oven on Christmas morning for a stress-free, spectacular breakfast that will have everyone asking for seconds.

this Recipe

Ingredients You’ll Need

This recipe shines because of its simplicity and thoughtful layering of flavors. Each ingredient plays a vital role in creating a casserole that’s both satisfying and festive, with a perfect balance of textures and colors that delight the senses.

• Bread (16 slices, crusts removed): Acts as the hearty foundation, soaking up the savory custard for a tender yet structured base.
• Canadian bacon (16 slices): Adds a smoky, meaty layer with just the right saltiness to complement the cheese.
• Sharp Cheddar cheese (16 slices): Melts into creamy pockets that deliver bold, tangy flavor throughout the casserole.
• Large eggs (6): Create the rich and fluffy custard that binds every component together beautifully.
• Salt (½ teaspoon): Enhances all the flavors without overpowering.
• Ground black pepper (½ teaspoon): Introduces a light, warming kick.
• Dry mustard (1 teaspoon): Adds subtle depth and a slight tang for complexity.
• Minced onion (¼ cup): Offers a mild savory note and texture contrast.
• Diced green bell pepper (2 tablespoons): Brings fresh crunch and vibrant color.
• Diced red bell pepper (2 tablespoons): Adds sweetness and a pop of festive red.
• Worcestershire sauce (2 teaspoons): Gives a savory umami boost that ties the ingredients together.
• Hot sauce (1 dash): Just a touch to brighten and lift the flavors.
• Whole milk (3 cups): Keeps the custard creamy and rich.
• Butter, melted (½ cup): Brushed on top to create a golden, buttery crust.
• Crushed corn flakes cereal (1 cup): Sprinkled on top for a satisfyingly crisp finish.

How to Make Overnight Christmas Breakfast Casserole with Canadian Bacon and Cheddar Recipe

Step 1: Prepare Your Baking Dish and First Layer

Start by preheating your oven to 350 degrees Fahrenheit (175 degrees Celsius) and generously buttering a 9×13-inch baking dish. Then, fit half of the bread slices carefully into the bottom, making sure to cover every corner so the layers hold together perfectly.

Step 2: Layer the Canadian Bacon and Cheddar Cheese

Next, lay down a layer of the Canadian bacon slices, spreading them evenly over the bread base. Top this with the sharp cheddar cheese slices to add that luscious, melty layer everyone loves. This combination brings the heartiness and richness that make this casserole so comforting.

Step 3: Add the Top Layer of Bread

Cover the savory layers with the remaining bread slices. This second layer envelops the fillings and soaks up the egg custard, helping the casserole hold its shape while baking into a golden delight.

Step 4: Whisk Together the Egg Mixture

In a large bowl, whisk the eggs along with salt, black pepper, and dry mustard until blended. Stir in the minced onion, diced green and red bell peppers, Worcestershire sauce, and a dash of hot sauce. Finally, whisk in the whole milk until the mixture is smooth and uniform. This flavorful custard will infuse the casserole with richness and a perfect hint of spice.

Step 5: Combine and Refrigerate Overnight

Pour the egg mixture evenly over the bread layers, making sure it soaks through. Cover the dish tightly with plastic wrap or foil and pop it into the refrigerator. Let it sit overnight so the flavors meld and the bread absorbs all that custardy goodness.

Step 6: Add Butter and Corn Flakes, Then Bake

On baking day, remove the casserole from the fridge and drizzle the melted butter over the top. Sprinkle the crushed corn flakes generously to create a crisp, golden crust. Bake uncovered for about an hour until the casserole is set and lightly browned. Let it rest for 10 minutes before slicing to allow it to firm up just right.

How to Serve Overnight Christmas Breakfast Casserole with Canadian Bacon and Cheddar Recipe

Garnishes

This casserole is already a star, but garnishing with freshly chopped green onions or a sprinkle of fresh parsley adds a pop of color and a fresh herbal note that really lifts the dish. A few cherry tomatoes on the side can also brighten the presentation beautifully.

Side Dishes

Serve alongside a simple fruit salad or some roasted breakfast potatoes for a well-rounded morning feast. The crispness of the potatoes complements the creamy, savory casserole perfectly, and the fruit adds a refreshing balance to the plate.

Creative Ways to Present

For a festive holiday table, cut the casserole into neat squares and arrange on a large platter with sprigs of rosemary or holly (real or decorative) around the edges. You can also serve individual portions in ramekins for a charming, personalized touch that makes everyone feel special.

Make Ahead and Storage

Storing Leftovers

Once cooled, place any leftover casserole in an airtight container and refrigerate. It will keep well for up to 3 days and can be enjoyed as a delicious next-day breakfast or brunch without losing its wonderful texture or flavor.

Freezing

This casserole freezes beautifully! Wrap it tightly in plastic wrap and then foil before freezing. It will maintain its taste and texture for up to 2 months. Just thaw overnight in the refrigerator before reheating.

Reheating

To reheat, cover the casserole with foil and warm in a 350-degree Fahrenheit oven for 20–25 minutes or until heated through. This method keeps it moist and prevents over-browning, bringing it back to that fresh-from-the-oven warmth you crave.

FAQs

Can I use other types of bread in this casserole?

Absolutely! While the original calls for sliced bread with crusts removed, you can experiment with brioche, sourdough, or even a hearty whole wheat for a different flavor and texture profile.

Is it possible to make this casserole vegetarian?

Yes, you can swap out the Canadian bacon for sautéed mushrooms or a vegetarian meat substitute, and it will still be deliciously satisfying.

How spicy is the casserole with the hot sauce?

The hot sauce is added in just a dash to provide a gentle warmth, not heat that overwhelms. You can adjust or omit it depending on your family’s spice preferences.

Can I prepare this casserole the morning of the event?

While it’s designed to be a make-ahead dish, if short on time, you can assemble it a few hours before baking. Just keep it refrigerated until you’re ready to bake.

What can I serve with this casserole for a complete Christmas breakfast?

Pair it with fresh fruit, coffee, juices, and maybe some freshly baked pastries or muffins for a complete and festive breakfast experience that everyone will enjoy.

Final Thoughts

I can’t recommend the Overnight Christmas Breakfast Casserole with Canadian Bacon and Cheddar Recipe enough for your holiday mornings or any special brunch occasion. It’s one of those dishes that feels fancy but is incredibly effortless to prepare, leaving you more time to enjoy your loved ones and less time worrying about the kitchen. Give it a try and watch how it becomes a cherished tradition at your table!

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