Baked Italian Egg Pastries

Bahan-bahan (4 porsi)

• One sheet Puff Pastry, (thawed)
• 1 large egg
• 1 tablespoon water
• ½ teaspoon Dijon mustard
• ¼ cup julienne-cut, ready-to-eat sun-dried tomatoes ((packed))
• ¼ cup chopped fresh spinach ((packed))
• 4 large eggs
• ¼ cup shredded Parmesan cheese
• salt and freshly ground black pepper