Gluten-Free Croque Madame

Ingredients

• 4 slices gluten-free bread
• 4 slices of ham
• 4 slices of Swiss cheese
• 2 tbsp unsalted butter (plus extra for spreading)
• 1 tbsp gluten-free all-purpose flour
• 1 cup milk
• 1/4 tsp salt
• 1/4 tsp ground black pepper
• 1/4 tsp nutmeg
• 2 tbsp Dijon mustard
• 2 large eggs
• 1 tbsp olive oil
• Fresh parsley, chopped (optional, for garnish)