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–+ servings
Overnight Croissant Breakfast Casserole

Overnight Croissant Breakfast Casserole

Delight in the savory richness of this Overnight Croissant Breakfast Casserole, perfect for impressing family and friends.
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Prep Time 20 minutes
Cook Time 45 minutes
Refrigeration Time 8 hours
Total Time 9 hours 5 minutes
Servings: 8 slices
Course: Breakfast
Cuisine: American
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

Base Ingredients
  • 4 large butter croissants these add a rich, buttery flavor
  • 1 lb breakfast sausage use mild or spicy
  • 1 small onion finely chopped
  • 1 c shredded cheddar cheese provides creamy richness
Egg Mixture Ingredients
  • 6 large eggs the foundation of your casserole
  • 1/2 c heavy whipping cream adds luxurious creaminess
  • 3 c whole milk keep it divided
  • 1/2 tsp dry mustard powder
  • 1/2 tsp salt remember to add more to taste for gravy
  • 1/2 tsp black pepper adjust more in your gravy if needed
  • 1/4 tsp paprika adds smokiness
  • 1/4 tsp garlic powder enhances the savory profile
Gravy Ingredients
  • 2 tbsp butter a must for a silky gravy
  • 3 tbsp all-purpose flour helps thicken the gravy

Equipment

  • skillet
  • 9×13-inch baking dish
  • Mixing bowls
  • Whisk
  • saucepan

Method
 

Preparation Steps
  1. Heat olive oil in a skillet over medium heat. Add chopped onions and sauté until soft and translucent, about 5 minutes.
  2. Add breakfast sausage to the skillet, cooking until browned and crumbly, then drain fat.
  3. Tear croissants into bite-sized pieces and place in a large bowl. Add sausage mixture and shredded cheddar cheese, tossing gently.
  4. Spread croissant mixture evenly into a greased 9x13-inch baking dish.
  5. In a separate bowl, whisk together the eggs, heavy cream, and 1/2 cup milk with spices until combined. Pour over the croissant mixture.
  6. Cover with plastic wrap or foil and refrigerate overnight.
  7. Preheat the oven to 350°F. Remove cover and bake for 35 to 45 minutes until golden brown.
  8. Melt butter in a saucepan with reserved sausage fat over medium heat, stir in flour, then gradually whisk in 2½ cups of milk until thickened.
  9. Once baked, let cool slightly, slice, and serve hot with creamy gravy.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 28gProtein: 18gFat: 22gSaturated Fat: 10gMonounsaturated Fat: 6gCholesterol: 200mgSodium: 800mgPotassium: 300mgFiber: 1gSugar: 3gVitamin A: 15IUVitamin C: 2mgCalcium: 20mgIron: 8mg

Notes

For best results, ensure croissants are fresh or slightly stale to absorb the egg mixture better, and allow chilling overnight to soak up flavors.

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