Prep Christmas Breakfast Casserole the night before for an easy holiday breakfast. Great for feeding the family on Christmas or any time of the year!
Original post: December 2018 | Updated: December 2020
Why This Recipe Works
Christmas Breakfast Casserole is a great solution for simplifying meals in December or any time of the year. Not just for me and my family, but for YOU and yours! Prep it the night before, when guests are staying over or on Christmas Eve for an easy, no-fuss Christmas-morning breakfast or brunch.
If you find yourself with leftovers, it tastes great as a reheated meal. Do not let the title “Christmas Breakfast Casserole” limit you! It is great enjoyed any time of the year and even acts as a delicious and filling dinner option.
Web Story For A Healthy Egg Bake
Check out how to make a holiday morning egg bake the night before, check out this quick story!
How To Make Christmas Morning Casserole
Step 1
Coat a 9×13 baking dish with cooking spray and set aside. Heat the olive oil in a skillet over medium heat. Add the mushrooms, onion, bell pepper, salt and pepper. Cook for 5 minutes, or until veggies are soft and fragrant. Remove from heat.
Step 2
Beat the eggs in a large bowl. Add the milk, veggie mixture, bacon, ham and cheddar cheese and stir until combined. Add the bread pieces to the prepared pan in an even layer and pour the egg-veggie mixture over the top.
Top with the mozzarella cheese. Cover with foil and refrigerate overnight or until ready to bake.
Step 3
Preheat oven to 350 degrees F. Remove foil from the baking dish and bake in the preheated oven for 50 minutes, or until eggs are cooked through in center. Top with sliced green onions and serve!
Make Breakfast Casserole Now, Bake Later
Making breakfast casserole ahead of time frees up time in the morning, but it can be baked immediately after prepping, as well. Mornings, especially holiday mornings, can be jam-packed full of activity, so this make-ahead meal is meant to help when it’s most needed!
Recipe Notes
- Use ground sausage or ground beef for this recipe, or all of the above! Keep the total meat used in the recipe to 2 cups cooked or less.
- Use veggies you prefer (or have on hand) to replace any in the recipe.
- Replace bread pieces with gluten-free bread pieces or GF hash browns for a gluten-free breakfast.
Delicious Breakfast Recipes
- Make Homemade Bagels using only 5 ingredients and in 20 minutes from start to finish! NO YEAST or rising or waiting required. These easy bagels are soft, flavorful and taste great with savory or sweet toppings.
- You have just met your new go-to Blueberry Muffins recipe! These muffins turn out great every time, they are moist and totally packed with blueberries.
- Donuts have never been easier or less loaded with fat! Use refrigerated biscuits to make super delicious donuts in your air fryer. Save a few dollars and a trip to the donut shop!
- I have been making (and perfecting) the BEST Breakfast Casserole for YEARS and it is one of my all-time favorite breakfast foods. This is perhaps my favorite thing ever to make for brunches. It is a massive hit every single time!
- Transform French Toast into a Mixed Berry Croissant Breakfast Bake! The croissants add such a delicious buttery texture. Let it sit in the fridge overnight so it is ready to bake the next day!
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Christmas Breakfast Casserole Recipe
Ingredients
- 3 tbsp olive oil
- 8 oz mushrooms sliced
- 1 yellow onion chopped
- 1 red bell pepper chopped
- Salt and pepper to taste
- 8 eggs beaten
- 3 cups milk
- 10 cups dry bread pieces
- 1 cup bacon cooked and chopped
- 1 cup deli ham cut in strips
- 1 cup sharp cheddar cheese shredded
- 1 cup mozzarella cheese shredded
- 1/4 cup green onions sliced, for topping
Instructions
- Coat a 9×13 baking dish with cooking spray and set aside. Heat the olive oil in a skillet over medium heat. Add the mushrooms, onion, bell pepper, salt and pepper. Cook for 5 minutes, or until veggies are soft and fragrant. Remove from heat.
- Beat the eggs in a large bowl. Add the milk, veggie mixture, bacon, ham and cheddar cheese and stir until combined. Add the bread pieces to the prepared pan in an even layer and pour the egg mixture over the top. Top with the mozzarella cheese. Cover with foil and refrigerate overnight or until ready to bake.
- Preheat oven to 350 degrees F. Remove foil from the baking dish and bake in the preheated oven for 50 minutes, or until eggs are cooked through in center. Top with sliced green onions and serve!
Notes
- Use ground sausage or ground beef for this recipe, or all of the above! Keep the total meat used in the recipe to 2 cups cooked or less.
- Use veggies you prefer (or have on hand) to replace any in the recipe.
- Replace bread pieces with gluten-free bread pieces or GF hash browns for a gluten-free breakfast.
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