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Christmas Breakfast Casserole

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A warm, comforting, and festive casserole combining layers of bread, savory sausage or bacon, caramelized onions, and melty cheese soaked in a rich egg custard. Perfect for Christmas morning or any special holiday breakfast, this casserole can be prepped the night before and baked fresh for a golden, bubbly delight that’s both hearty and elegant.

  • Total Time: 1 hour 15 minutes (plus soaking/refrigeration)
  • Yield: 8-10

Ingredients

Scale
  • 8 cups day-old crusty bread, cubed
  • 1 lb breakfast sausage or bacon, cooked and crumbled
  • 1 cup diced onions, caramelized
  • 1 cup diced bell peppers, sautéed
  • 2 cups shredded sharp cheddar cheese
  • 6 large eggs
  • 2 cups whole milk
  • 1 cup heavy cream
  • 1 tsp fresh thyme (or rosemary)
  • 1/4 tsp ground nutmeg
  • Salt and pepper to taste
  • Optional: 1 tbsp maple syrup or brown sugar

Instructions

  • Preheat oven to 350°F (175°C).
  • Cook sausage or bacon until browned; sauté onions and peppers.
  • In a large bowl, whisk eggs, milk, cream, salt, pepper, nutmeg, and maple syrup if using.
  • Layer half the bread cubes in a greased baking dish, followed by half the meat, vegetables, and cheese. Repeat layers.
  • Pour custard evenly over casserole and press lightly to soak.
  • Cover and let soak for 30 minutes or refrigerate overnight.
  • Bake uncovered for 45-55 minutes until set and golden.
  • Let rest 10 minutes before serving.

Notes

  • Use day-old bread to prevent sogginess.
  • Customize with your favorite cheese or veggies.
  • Soaking time is key for best texture.
  • Leftovers reheat well in oven or microwave.
  • Author: Diana Ross
  • Prep Time: 25 minutes
  • Cook Time: 50 minutes
  • Category: Breakfast / Brunch
  • Method: Oven-baked
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 8-10
  • Calories: 420
  • Sugar: 4g
  • Sodium: 650mg
  • Fat: 28g
  • Saturated Fat: 28g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 2g
  • Protein: 22g
  • Cholesterol: 220mg