Easy Bacon Croissant Breakfast Casserole – Perfect for Brunch or Busy Mornings

If you’re anything like me, breakfast has to check three boxes: quick, comforting, and loved by everyone at the table.

Enter this buttery croissant breakfast casserole—flaky croissants, crispy bacon, and melty cheese all baked into one irresistible dish. It’s the kind of recipe that makes busy mornings feel a little more special without extra fuss.

Whether you’re hosting brunch or just feeding your family on a lazy Sunday, this casserole is simple, hearty, and guaranteed to disappear fast!

Tips for the Perfect Croissant Breakfast Casserole

1. Use Day-Old Croissants

   • Slightly stale croissants soak up the egg mixture better without getting mushy. If your croissants are fresh, toast them lightly in the oven for 5-10 minutes at 300°F.

2. Cook the Bacon Crispy

   • Crispy bacon adds a nice texture contrast. Cook it until golden and drain on paper towels to remove excess grease.

3. Balance Your Cheese

   • Use a mix of sharp cheddar for flavor and mozzarella for that irresistible meltiness. Avoid using only mozzarella, as it’s mild and needs the cheddar to add depth.

4. Soak the Croissants Well

   • Gently press the croissants into the egg mixture after pouring it over. This ensures every piece soaks up flavor without drying out.

5. Don’t Skip Rest Time

   • Let the assembled casserole sit for 10-15 minutes before baking. This allows the croissants to fully absorb the custard for a soft yet firm texture.

6. Cover, Then Uncover

   • Bake the casserole covered with foil for the first 20 minutes to avoid over-browning. Uncover it for the last 15 minutes to get a golden, crispy top.

7. Flavor Boosters

   • Add a pinch of garlic powder, black pepper, or a sprinkle of fresh herbs (like parsley) after baking for extra flavor.

8. Prep Ahead

   • Assemble the casserole the night before, cover, and refrigerate. Bake it in the morning for a stress-free breakfast.

Print

Easy Bacon Croissant Breakfast Casserole – Perfect for Brunch or Busy Mornings

Yield 4

Author Kim Alexander

Prep time

15 Min

Cook time

40 Min

Total time

55 Min

Cook modePrevent screen from turning off

Ingredients

• 3 large croissants (day-old preferred), torn into large pieces
• 6-8 slices bacon, cooked crispy and crumbled (about ¾ cup)
• 1 cup sharp cheddar cheese, shredded
• ½ cup mozzarella cheese, shredded
• 4 large eggs
• 1 cup heavy cream
• 1 teaspoon Dijon mustard
• ½ teaspoon granulated garlic (optional)
• ½ teaspoon kosher salt
• ¼ teaspoon cracked black pepper
• Small pinch of grated nutmeg (optional)

Instructions

1. Preheat to 350°F (175°C). Lightly grease a small round casserole dish.
2. Arrange the torn croissant pieces evenly in the dish.
3. Sprinkle the crumbled bacon over the croissants, followed by ¾ of the shredded cheeses.
4. In a bowl, whisk together eggs, heavy cream, Dijon mustard, garlic, salt, pepper, and nutmeg until well combined.
5. Pour the custard evenly over the croissants. Gently press down to ensure the croissants soak up the mixture.
6. Top with the remaining cheese.
7. Cover the dish with foil and bake for 20 minutes. Remove the foil and bake for an additional 15-20 minutes, until the top is golden brown and the center is set.
8. Let cool for 5 minutes before serving. Garnish with fresh parsley or cracked black pepper, if desired.

Notes

Tips

• Use day-old croissants for the best texture.
• Prepare the casserole the night before for an easy morning bake.
• Swap bacon for turkey sausage or make it vegetarian with sautéed spinach.

Nutrition Facts

Calories

799

Fat

65 g

Sat. Fat

34 g

Carbs

27 g

Fiber

1 g

Net carbs

26 g

Sugar

8 g

Protein

27 g

Sodium

1112 mg

Cholesterol

352 mg

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