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Cheesy Black Pepper Bacon & Egg Croissant Bake

This Cheesy Black Pepper Bacon & Egg Croissant Bake is a hearty, crowd-pleasing breakfast casserole that combines buttery croissants, crispy black pepper bacon, and three types of melty cheese. Topped with fresh chives, it’s perfect for brunches, holiday mornings, or make-ahead breakfasts. Ready in under an hour, it’s easy to prep and baked to golden, cheesy perfection.
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings: 8 Servings
Course: Breakfast
Ingredients Equipment Method

Ingredients
  

  • 8-9 croissants preferably day-old
  • 10 large eggs
  • 1½ cups whole milk
  • ½ cup heavy cream
  • 1 tsp Dijon mustard
  • ½ tsp salt
  • ¾ tsp freshly cracked pepper plus more for topping
  • ½ tsp garlic powder
  • 1½ cups shredded sharp cheddar cheese
  • 1 cup shredded Swiss cheese
  • 1 cup shredded low-moisture mozzarella
  • 10 slices black pepper bacon cooked until crisp and chopped
  • ¼ cup finely chopped fresh chives
  • butter for greasing the dish

Equipment

  • 9x13-inch baking dish
  • Medium mixing bowl
  • Whisk or fork
  • Knife & cutting board

Method
 

  1. Preheat oven
    Preheat to 350°F. Butter a 9x13-inch baking dish.
  2. Prepare the croissants
    Cut croissants into thirds and spread evenly in the baking dish.
  3. Layer the cheese & bacon
    Scatter half of the shredded cheeses over the croissants. Add the chopped black pepper bacon, and half of the chives. Top with remaining shredded cheeses.
  4. Make the egg mixture
    In a bowl, whisk together eggs, milk, cream, Dijon mustard, salt, black pepper, and garlic powder until smooth.
  5. Assemble
    Pour the egg mixture evenly over the croissants. Gently press everything down so the custard soaks in. Finish with a light sprinkle of cracked black pepper.
  6. Bake
    Bake uncovered for 40–45 minutes, until deeply golden, puffed, and the center is fully set. If the top browns too quickly, loosely tent with foil.
  7. Rest & serve
    Let rest for 10 minutes. Finish with remaining chives before slicing and serving.