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Open Faced Croque Monsieurs

Open Faced Croque Monsieur Recipe

This open-faced Croque Monsieur recipe is a favorite dinner that you can have on the table in 15 minutes. Warm, creamy, cheesy, and tasty!
Course Dinner, Lunch
Cuisine Italian
Keyword Croque Monsieur
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Servings 4 servings
Calories 428kcal
Author Lauren's Latest


For the sauce-

  • 2 tablespoons Butter
  • 2 tablespoons Flour
  • 1 1/2 cups Milk
  • 1/8 teaspoon ground Nutmeg
  • Salt & pepper to taste
  • 1 1/4 cups grated gruyere cheese divided
  • 4 homemade rolls
  • 1/4 cup Dijon mustard
  • 16 thin slices deli ham


  • Preheat oven to 350 degrees. In a small pot, melt butter over medium heat. Stir in flour until paste forms. Cook 1 minute, then whisk in milk. Continue stirring until sauce thickens, 5 minutes. Stir in salt, pepper, nutmeg and 1 cup of the gruyere cheese. Set aside.
  • Slice rolls in half and spread Dijon mustard over each half. Place into baking dish. Top with 2 slices deli ham. Pour cheese sauce over top and sprinkle with remaining gruyere cheese. Bake 10-15 minutes until hot and bubbly. Serve.


Calories: 428kcal | Carbohydrates: 28g | Protein: 21g | Fat: 26g | Saturated Fat: 14g | Cholesterol: 72mg | Sodium: 677mg | Potassium: 237mg | Fiber: 2g | Sugar: 6g | Vitamin A: 714IU | Vitamin C: 1mg | Calcium: 605mg | Iron: 2mg