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Christmas Brunch Casserole Recipe
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Christmas Brunch Casserole

A hearty and colorful Christmas Brunch Casserole made with eggs, sausage, vegetables, cheese, and bread. It can be assembled ahead and baked on Christmas morning for an easy holiday breakfast or brunch.
Prep Time20 minutes
Cook Time55 minutes
Rest Time30 minutes
Total Time1 hour 45 minutes
Course: Breakfast, Brunch
Cuisine: American
Servings: 10
Calories: 390kcal

Ingredients

  • 10 large eggs
  • 2 cups milk
  • 6 cups cubed sourdough or whole-grain bread
  • 1 pound breakfast sausage
  • 1 ½ cups shredded cheddar cheese
  • 2 cups fresh spinach
  • 1 red bell pepper diced
  • 1 green bell pepper diced
  • 1 small yellow onion diced
  • 2 cloves garlic minced
  • 1 tablespoon olive oil
  • 1 teaspoon paprika
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 2 tablespoons fresh parsley chopped

Instructions

  • Lightly grease a 9×13-inch baking dish.
  • Cut the bread into bite-sized cubes and spread them evenly in the dish.
  • Heat olive oil in a skillet over medium heat.
  • Add the sausage and cook until browned and fully cooked.
  • Add onion and bell peppers and cook until softened.
  • Stir in garlic and spinach and cook until the spinach wilts.
  • Whisk eggs, milk, paprika, salt, and black pepper in a large bowl.
  • Spread the sausage and vegetable mixture over the bread.
  • Sprinkle cheddar cheese evenly over the top.
  • Pour the egg mixture over everything.
  • Gently press the bread down so it absorbs the egg mixture.
  • Cover and refrigerate for at least 30 minutes or overnight.
  • Preheat the oven to 350°F (175°C).
  • Bake uncovered for 45–55 minutes, until the center is set and the top is lightly golden.
  • Let rest for 5–10 minutes before slicing.
  • Garnish with fresh parsley and serve warm.

Notes

  • Slightly stale bread works best because it absorbs the egg mixture without becoming soggy.
  • For overnight preparation, cover the assembled casserole tightly and refrigerate.
  • If the top begins browning too quickly, loosely cover it with foil.
  • Let refrigerated casserole sit briefly while the oven preheats.
  • Add extra vegetables for a more vegetable-forward version.
  • Turkey sausage can be substituted for regular breakfast sausage.
  • Leftovers can be refrigerated in an airtight container for up to 3 days.

Nutrition

  • Calories: Approximately 390 kcal
  • Carbohydrates: 25 g
  • Protein: 23 g
  • Fat: 23 g
  • Saturated Fat: 9 g
  • Fiber: 3 g
  • Sugar: 5 g
  • Sodium: 720 mg