Cheesy Sausage Christmas Breakfast Casserole

Christmas morning brings not only joy and excitement but also the delightful aroma of my mom’s Cheesy Sausage Christmas Breakfast Casserole. This cherished tradition fills our home with warmth and anticipation as we gather around the table to enjoy the perfect blend of flavors. This easy-to-make casserole is not only delicious but also a time-saving treat, allowing you to spend more time with loved ones on this special day.


  • 1 lb ground sausage
  • 1 tsp mustard powder
  • 1/2 tsp kosher salt
  • 4 large eggs, beaten
  • 2 cups whole milk
  • 6 slices white bread, toasted and cut into cubes
  • 1 cup mild Cheddar cheese, shredded

How To Make Christmas Breakfast Casserole:

  1. Prepare Sausage:
    • Crumble sausage into a medium skillet.
    • Cook over medium heat until evenly browned; drain.
  2. Mix Ingredients:
    • In a medium bowl, mix together mustard powder, salt, beaten eggs, and milk.
    • Add the browned sausage, bread cubes, and shredded Cheddar cheese. Stir to coat evenly.
  3. Assemble and Chill:
    • Pour the mixture into a greased 9×13 inch baking dish.
    • Cover and chill in the refrigerator for 8 hours or overnight.
  4. Preheat and Bake:
    • Preheat the oven to 350 degrees Fahrenheit.
    • Cover the casserole and bake for 45 to 60 minutes.
  5. Reduce Temperature and Continue Baking:
    • Uncover the casserole and reduce the oven temperature to 325 degrees.
    • Bake for an additional 30 minutes or until set.
  6. Serve and Enjoy:
    • Once baked to perfection, cut the casserole into squares and serve.


  • Calories: 467kcal
  • Carbohydrates: 17g
  • Protein: 25g
  • Fat: 33g
  • Saturated Fat: 13g
  • Polyunsaturated Fat: 4g
  • Monounsaturated Fat: 12g
  • Trans Fat: 0.2g
  • Cholesterol: 192mg
  • Sodium: 990mg
  • Potassium: 396mg
  • Fiber: 1g
  • Sugar: 5g
  • Vitamin A: 536IU
  • Vitamin C: 1mg
  • Calcium: 310mg
  • Iron: 2mg


This Christmas Breakfast Casserole is not just a dish; it’s a festive tradition that brings family and friends together. With its savory sausage, cheesy goodness, and the convenience of preparation the night before, it allows you to savor precious moments on Christmas morning. Embrace the joy of the holiday season with this heartwarming breakfast that is sure to become a cherished memory in your family’s Christmas celebrations.

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