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Breakfast bake with ham and cheese on a blue background

Ham and Cheese Croissant Bake

This ham and cheese croissant bake is the perfect breakfast casserole. It's easy to make ahead, can be eaten hot or cold and is delicious served as part of a brunch.
Course Breakfast
Cuisine French
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 6 servings
Calories 374kcal


  • Butter for greasing
  • 4 Croissants torn into pieces
  • 4 Eggs
  • 350 ml Whole Milk
  • 1/2 tbsp Dijon Mustard
  • 2 sprigs Fresh Thyme chopped, plus a few extra sprigs for serving
  • Pinch Ground Nutmeg
  • Salt and Pepper
  • 70 g Gruyere grated
  • 70 g Cheddar grated
  • 150 g Spinach chopped
  • 100 g Ham chopped


  • Heat the oven to 180°C/350°F. Grease a medium baking dish.
  • Whisk together the eggs, milk, mustard, thyme, nutmeg, half of each cheese and plenty of salt and pepper. Spread the croissant pieces, ham and spinach in the baking dish then pour the egg mixture over them.
  • Top with the rest of the cheese then bake for 45 minutes until set in the middle. Leave to cool for 5 minutes then sprinkle with thyme sprigs before serving.


Nutrition information is an estimate and will vary depending on the exact ingredients used.


Calories: 374kcal | Carbohydrates: 22g | Protein: 19g | Fat: 23g | Saturated Fat: 12g | Cholesterol: 176mg | Sodium: 588mg | Potassium: 370mg | Fiber: 2g | Sugar: 8g | Vitamin A: 3123IU | Vitamin C: 8mg | Calcium: 323mg | Iron: 2mg