Overnight Croissant Breakfast Casserole

Overnight Croissant Breakfast Casserole

This Overnight Croissant Breakfast Casserole is always a hit! You just prep it the night before and pop it in the oven in the morning. Your family or guests will wake up to the mouthwatering aroma of this hearty breakfast dish.

Author: Wondermom Wannabe

Meal Type: Breakfast

Cuisine: American

Difficulty: HARD

Prep. Time: 8 hours 15 minutes

Cook Time: 55 minutes

Total Time: 9 hours 10 minutes

Servings: 8 servings

Calories: 964 kcal per serving

Ingredients

  • 1 lb - bacon
  • 1 lb - pork breakfast sausage
  • 8 - croissants
  • 5 - eggs
  • 2 ¾ cups - milk
  • 1 cup - heavy cream
  • 1 tsp - salt
  • ½ tsp - pepper
  • ½ tsp - garlic powder
  • ½ tsp - dry mustard
  • ½ tsp - ground sage
  • 1 cup - Parmesan cheese
  • 8 ounces - cheddar cheese

Instructions

  1. Cook 1 pound of bacon until it is crispy. Set it aside until it cools, then crumble it into pieces.
  2. Brown 1 pound of pork breakfast sausage over medium-high heat, drain fat. Add the crumbled bacon to the skillet.
  3. Tear croissants into bite-sized pieces and press them into the bottom of a greased 9x13 baking dish.
  4. Pour the meat mixture over the top of the croissants.
  5. In a large mixing bowl, combine eggs, milk, and heavy cream. Add salt, pepper, garlic powder, mustard, and sage. Whisk to combine well.
  6. Pour the liquid mixture over top of the meat and croissants in the baking dish.
  7. Cover the dish with tin foil, and place it in the fridge to sit overnight.
  8. In the morning, preheat the oven to 350 degrees. 
  9. Uncover the casserole dish, and sprinkle 1 cup of parmesan cheese over the mixture. Top with shredded cheddar cheese. 
  10. Bake for 45-55 minutes until it is cooked through and the liquid has been absorbed. If the top browns too quickly, cover with foil and continue cooking until the casserole is cooked through.
  11. Serve with fresh fruit.

Nutrition

Energy: 964 kcal | Total Fat: 73 g | Saturated: 34 g | Trans: 0 g | Unsaturated: 11 g | Cholesterol: 317 mg | Total Carbs: 27 g | Fiber: 1 g | Sugars: 10 g | Proteins: 47 g | Sodium: 2,183 mg | Polyunsaturated: 6 g | Monounsaturated: 27 g

©2026 OnlineCook LLC