Croissant Breakfast Casserole
BARS = SHARE OF RECIPE CALORIES · RINGS = FDA DV
An overnight breakfast casserole with croissants, ham, mushrooms, and melted gruyere and parmesan. Perfect for entertaining with make-ahead convenience and rich, savory flavors.
We index the facts; the cooking instructions live with the creator.
Nutrition & ingredients
Ingredients
serves 8- ¼ cup Challenge Unsalted Butter (plus extra for buttering the pan)
- 8 ounces sliced fresh mushrooms (such as crimini or shiitake)
- 1 large leek (sliced)
- 1 medium onion (diced)
- 1 teaspoon fine sea salt (divided)
- 3-4 cloves garlic (minced)
- 2 tablespoons whole-grain mustard
- 1 tablespoon sherry vinegar (optional)
- 8 large eggs
- 2 cups whole milk
- 6-8 ounces diced smoked ham
- 6 ounces grated Gruyere cheese
- 2 ounces freshly grated parmesan cheese
- ½ teaspoon black pepper
- 12 ounces croissants (cut or torn into 1-inch pieces)
At a glance
PER SERVING · TIME 560M
BARS = SHARE OF RECIPE CALORIES · RINGS = FDA DV
Complete estimate · 100% of estimated mass resolved
All countable ingredients resolved. Figures are per serving.
- Prep
- 20m
- Cook
- 1h
- Sodium
- 950mg
- Total sugar
- 7g
Added sugar is not shown when one or more ingredients lack reliable added-sugar evidence.
Nutrition estimated from ingredients, per serving.
Vitamins & minerals
- Potassium
- 337mg
- Calcium
- 404mg
- Iron
- 2mg
Estimated from ingredients; USDA coverage varies by food.
- PREP
- 20M
- SODIUM
- 950MG
- ESTIMATE
- COMPLETE
Nutrition estimated from ingredients, per serving. 100% of estimated mass resolved.