Description
This Croissant Breakfast Casserole combines the flaky richness of buttery croissants with a hearty, savory mix of eggs, cheese, and ham or sausage, making it a perfect dish for brunches or festive breakfasts.
Ingredients
Scale
- 6 large croissants, preferably day-old, cut into bite-sized pieces
- 6 large eggs
- 2 cups milk (or any dairy-free alternative)
- 1 cup shredded cheese (such as cheddar or a Swiss blend)
- 1 cup diced cooked ham (or cooked sausage)
- 1/2 cup sautéed onion (or your choice of vegetables)
- 1 teaspoon Dijon mustard
- Salt and pepper, to taste
- Fresh herbs (like chives or parsley) for garnish
Instructions
- Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
- Cut croissants into bite-sized pieces and layer evenly in the baking dish.
- In a bowl, whisk eggs, milk, Dijon mustard, salt, and pepper until fully combined.
- Sprinkle diced ham and sautéed onions over croissants.
- Pour egg mixture evenly over the ingredients in the baking dish.
- Top with shredded cheese, spreading it evenly across the surface.
- Cover with foil and bake for 30 minutes.
- Remove foil and bake for an additional 15–20 minutes, until the top is golden and a knife inserted comes out clean.
- Let the casserole rest for 10 minutes before serving.
Notes
- Use day-old croissants for best texture—fresh ones may become soggy.
- Letting the casserole rest after baking helps it set and makes slicing easier.
- Get creative with add-ins like bell peppers, mushrooms, or spinach for added nutrition.
- Top with fresh herbs, avocado, or a drizzle of hollandaise for extra flair.
- Store leftovers in the fridge for 3–4 days or freeze for up to 2 months.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: French-Inspired
Nutrition
- Serving Size: 1 square (approx. 1/8 of casserole)
- Calories: 350
- Sugar: 4g
- Sodium: 580mg
- Fat: 24g
- Saturated Fat: 10g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 1g
- Protein: 15g
- Cholesterol: 185mg
Keywords: croissant casserole, breakfast bake, brunch recipe, savory breakfast, croissant egg bake, ham and cheese casserole