Make Ahead Christmas Morning Breakfast Casserole

Are you looking for a breakfast casserole that you can make ahead for Christmas morning? I made this last year the night before and popped it in the oven on Christmas holiday morning and everyone loved it! This easy breakfast idea is perfect to make ahead for the holidays. So here you go my favorite simple make the night before Christmas Day Breakfast Casserole recipe.

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Check out these other recipes for Christmas morning breakfast some to make ahead and others that take just a few minutes to prepare and cook.

Make Ahead Christmas Breakfast Casserole

If your house is anything like ours on Christmas morning it’s an early start and I can tell you I don’t want to be messing around chopping, mixing and layering food for a casserole. Instead, I make this on Christmas Eve night and place it in the refrigerator overnight and then take it out and pop it in the oven on Christmas day.

plate with a portion of Christmas day breakfast casserole served on it with pine branch behind

I also put the ingredients in the crockpot for our French toast and blueberry breakfast casserole so that there is a savoury and sweet option for Christmas morning especially when we have all the family together.

sausage, potato and bell pepper breakfast casserole in a pyrex oven proof dish ready to go in the fridge on Christmas Eve for Christmas Day morning

On Christmas morning the timer switches on the crock pot about 4am and then at about 6:30 I come down and get the casserole out of the fridge and start it cooking.

Christmas breakfast casserole in pyrex dish with sausage and bell peppers showing through cheese and egg on the top

That means that just before 8am we can sit down and enjoy our breakfast together.

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Christmas Breakfast Casserole Ingredients

This is delicious, it's inspired by my sausage, egg and cheese breakfast casserole but to give it a festive flair I've added some red and green sweet peppers and used frozen diced potatoes to save a little time.

browning breakfast sausage in a skillet with red and green sweet bell peppers
  • 1 package breakfast sausage
  • 1 red bell pepper, diced
  • 1 green bell pepper, diced
  • 2 cups shredded cheddar cheese
  • 1 package frozen diced potatoes
  • 6 medium eggs
  • 1 ½ cups milk
  • Salt and pepper

If I have time I sometimes use my homemade Italian Sausage in the recipe as it adds a little bit of spice to it that my father-in-law loves.

Easy Make Ahead Christmas Breakfast Casserole

This recipe is going to take you about 15 minutes to make. So it's quick and easy. You're going to need a 9x13inch baking dish. I love my pyrex one and because it's glass you can really see the holiday colors of the peppers once cooked.

Top down view of the Christmas casserole for breakfast you can see the red and green bell peppers for a holiday cheer dotted amongst the sausage and egg mixture

I start with a potato and pepper layer at the bottom - this makes it a lot easier to slice and serve the casserole than the sausage layer. Then sprinkle with some cheese that will melt in.

diced potatoes and cheese in the pyrex dish ready for the meat layer for a breakfast casserole for Christmas

After it's the sausage layer which will peek through the egg mixture when cooked and brown nicely and a sprinkle of cheese to top it all off.

slice of breakfast casserole for Christmas day ready to be served

How to Make a Christmas Day Breakfast Casserole

So it's easy to do - let's make it! Don't forget if you do make and it and love it to leave me a review and let me know what the family thinks!

Yield: 8 People

Make Ahead Breakfast Casserole for Christmas Day

a slice of sausage breakfast casserole on a red checked plate make from Christmas Day breakfast the night before

A delicious savoury breakfast casserole to make ahead for Christmas day morning dotted with green and red bell peppers for some festive cheer.

Prep Time 15 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour 30 minutes


  • 1 16-ounce package breakfast sausage
  • 1 red bell pepper, diced
  • 1 green bell pepper, diced
  • 2 cups shredded cheddar jack cheese
  • 1 32-ounce package frozen diced potatoes
  • 6 eggs
  • 1 ½ cups milk
  • Salt and pepper


  1. Grease a 9x13 baking dish.
  2. Brown the breakfast sausage in a large skillet with half the red and green bell peppers. When cooked through, remove from heat and set aside.
  3. Combine the frozen diced potatoes and the remaining bell peppers. Spread in an even layer in the bottom of the baking dish. Season with salt and pepper.
  4. Top with half the cheese, then spread the sausage mixture over the top. Sprinkle the remaining cheese over the top of the meat.
  5. In a large bowl, whisk together the eggs and milk. Season with salt and pepper. Stir then pour over the top of the casserole.
  6. Cover and refrigerate overnight.
  7. Preheat oven to 350 F degrees.
  8. Bake in the preheated oven for 55 minutes, then remove the cover and bake for an additional 10 to 20
    minutes until the egg is set.


If you wish to make on the morning then preheat the oven Step 7 from the start.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 503Total Fat: 31gSaturated Fat: 13gTrans Fat: 0gUnsaturated Fat: 15gCholesterol: 223mgSodium: 792mgCarbohydrates: 30gFiber: 3gSugar: 6gProtein: 27g

Did you make this recipe and loved it?

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More Ideas for Christmas Morning

Want to try some other ideas, got little kids then these ideas below are so cute and the kids will love them on Chirtmas morning.

a christmas plate with 3 christmas tree cinnamon rolls with green frosting and lots of sprinkles, star and holly
a plate with a stack of green waffles placed to look like a Christmas tree covered in a glaze and with rainbow sprinkles for Christmas breakfast with the kids
a red checked plate on a wooden table with 3 diy hot chocolate bombs made with green candy melts and decorated with red and white chocolate piped on and a heart on top for some grinch themed movie fun
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