Easy Croissant Breakfast Casserole Recipe

If you want a breakfast that feels indulgent yet simple to prepare, this croissant breakfast casserole is the perfect choice. With buttery croissants layered with eggs, cheese, and savory sausage or ham, it delivers a rich flavor in every bite.

What is Croissant Breakfast Casserole?

A croissant breakfast casserole is a baked dish made by layering flaky croissants with eggs, cheese, and breakfast meats or vegetables. As it bakes, the croissants soak up the egg mixture, creating a soft, custardy interior with a golden top. It’s similar to a breakfast strata but with the rich flavor and texture of croissants.

Other Easy Breakfast Recipes

• Crockpot Breakfast Casserole
• Breakfast Casserole with Crescent Rolls
• Healthy Breakfast Casserole
• Make-Ahead Breakfast Casserole
• Keto Breakfast Casserole

Reasons to Try Croissant Breakfast Casserole

• Rich and buttery flavor – Croissants add an extra layer of indulgence.
• Easy to assemble – Uses simple ingredients and minimal prep.
• Great for gatherings – Perfect for brunch buffets or holiday mornings.
• Customizable recipe – Works with sausage, ham, bacon, or vegetables.
• Make-ahead friendly – Can be prepared the night before and baked fresh.

Ingredients Needed to Make Croissant Breakfast Casserole

• 6 large croissants (slightly stale or toasted, cut into pieces)
• 1 lb breakfast sausage or ham (cooked and crumbled)
• 1 small onion, finely chopped (optional)
• 8 large eggs
• 1 ½ cups milk (or half-and-half for creaminess)
• 2 cups shredded cheddar cheese (or mozzarella)
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 teaspoon salt
• ½ teaspoon black pepper
• 2 tablespoons chopped parsley (for garnish)

Instructions to Prepare Croissant Breakfast Casserole

Step 1: Preheat oven

Set oven to 350°F (175°C) and grease a 9×13-inch baking dish.

Step 2: Prepare croissants

Cut croissants into bite-sized pieces. If they are fresh, lightly toast them to avoid sogginess.

Step 3: Cook sausage

Brown sausage (or ham) in a skillet until fully cooked. Drain excess grease.

Step 4: Assemble layers

Spread half the croissant pieces in the baking dish. Add half the sausage and cheese. Repeat layers with the remaining croissants, sausage, and cheese.

Step 5: Mix egg base

In a bowl, whisk eggs, milk, garlic powder, onion powder, salt, and pepper until smooth.

Step 6: Pour egg mixture

Evenly pour the egg mixture over the croissant and sausage layers.

Step 7: Bake casserole

Bake uncovered for 35–40 minutes until eggs are set and the top is golden.

Step 8: Rest and serve

Let the casserole cool for 5 minutes before slicing. Garnish with parsley.

What Goes Well With Croissant Breakfast Casserole

• Fresh fruit salad – Adds lightness and freshness to balance the richness.
• Green side salad – A crisp, refreshing pairing.
• Yogurt parfait – A creamy and healthy side.
• Hot coffee or tea – Complements the buttery flavor of croissants.
• Orange juice – A bright, classic breakfast drink.

Key Tips for Making Croissant Breakfast Casserole

• Use day-old croissants – They absorb egg mixture better than fresh ones.
• Toast croissants if fresh – Prevents a soggy casserole.
• Drain sausage well – Keeps casserole from becoming greasy.
• Add cheese in layers – Ensures even flavor throughout.
• Rest before slicing – Keeps portions neat and intact.
• Cover if browning too fast – Use foil to prevent over-browning.

Creative Variations of Croissant Breakfast Casserole

• Vegetarian version – Use spinach, mushrooms, and bell peppers instead of sausage.
• Cheese lover’s casserole – Add Swiss or Gruyère for extra richness.
• Bacon twist – Replace sausage with crispy bacon pieces.
• Mediterranean style – Add olives, feta, and sun-dried tomatoes.
• Sweet option – Use croissants with cream cheese, fruit, and a light custard base.

Storage Guidelines for Croissant Breakfast Casserole

• Refrigerate leftovers – Store covered for up to 4 days.
• Freeze portions – Wrap slices tightly in foil and freeze for up to 2 months.
• Reheat before serving – Always reheat to restore texture and flavor.
• Cool before storing – Prevents condensation and sogginess.

Reheating Tips for Croissant Breakfast Casserole

• Oven method – Reheat at 325°F (160°C) for 15–20 minutes.
• Microwave option – Warm slices for 2–3 minutes on medium heat.
• From frozen – Bake covered with foil at 350°F (175°C) for 40–45 minutes.

Nutrition Value (per serving):

• Calories: ~420
• Protein: 22g
• Carbohydrates: 24g
• Fat: 28g
• Fiber: 2g
• Sodium: 780mg

FAQs

Should croissants be fresh or stale for a breakfast casserole?

Slightly stale croissants work best for breakfast casseroles because they absorb the egg mixture without turning soggy. If using fresh croissants, lightly toast them first.

Do you need to toast croissants before making a breakfast casserole?

If croissants are very fresh, toasting them helps prevent the casserole from becoming too soft. Day-old croissants can be used directly without toasting.

Can I prepare croissant breakfast casserole the night before?

Yes, you can assemble the casserole in advance, cover it, and refrigerate overnight. Bake in the morning, adding 5–10 extra minutes since it starts cold.

How do you know when croissant breakfast casserole is done?

The casserole is ready when the eggs are fully set, the cheese is melted, and the croissant top is golden brown. A knife inserted in the center should come out clean.

Final Words

This easy croissant breakfast casserole is a cozy and flavorful dish that transforms simple ingredients into something special. With buttery croissants, savory sausage, and cheesy eggs, it’s a recipe that feels indulgent yet easy enough for any morning. Perfect for sharing with family or serving at brunch, it’s sure to become a household favorite.

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