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Make-Ahead Sausage Croissant Breakfast Casserole

A golden-brown square slice of sausage croissant breakfast casserole on a white plate.
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Assemble this savory, cheesy breakfast casserole the night before for an easy, comforting morning bake featuring flaky croissants and seasoned sausage.

Ingredients

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  • 12 large store bought croissants, torn into 1-inch pieces
  • 1 pound bulk breakfast sausage, cooked and drained
  • 1 cup shredded sharp cheddar cheese
  • 1 cup shredded Monterey Jack cheese
  • 6 large eggs
  • 2 cups whole milk
  • 1 teaspoon Dijon mustard
  • 1 teaspoon dried ground sage
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper

Instructions

  1. Grease a 9×13 inch baking dish.
  2. Arrange half of the torn croissant pieces in an even layer in the bottom of the prepared dish.
  3. Sprinkle half of the cooked sausage and half of the shredded cheese mixture over the croissants.
  4. Repeat the layers with the remaining croissants, sausage, and cheese.
  5. In a large bowl, whisk together the eggs, milk, Dijon mustard, sage, salt, and pepper until well combined. This creates your custard binder.
  6. Slowly pour the egg mixture evenly over the layered croissants and sausage in the baking dish. Gently press down on the croissants to help them absorb the liquid.
  7. Cover the dish tightly with plastic wrap and refrigerate for at least 4 hours, or preferably overnight.
  8. When ready to bake, preheat your oven to 350 degrees Fahrenheit. Remove the plastic wrap.
  9. Bake uncovered for 45 to 55 minutes, or until the casserole is puffed, golden brown, and a knife inserted near the center comes out clean.
  10. Let the casserole rest for 10 minutes before slicing and serving.

Notes

  • For crispier edges, you can bake the casserole uncovered from the start, though the top may brown faster.
  • If you are short on time, you can skip the overnight refrigeration, but allow the casserole to sit at room temperature for 30 minutes before baking.
  • Use high-quality, buttery croissants for the best texture in this savory croissant pudding.
  • This recipe works well as a make ahead brunch casserole for holiday mornings.

Nutrition

Find it online: https://cravybite.link/sausage-croissant-breakfast-casserole-recipe/