Preheat oven to 180ºC (390ºF). Lightly grease 4 x 150ml ovenproof dishes. Line the sides of each dish with 2 slices of prosciutto, add the spinach, salt and pepper and crack an egg into each. Cover with aluminium foil and bake for 9 minutes or until the egg is starting to set. Remove the foil and top each egg with parmesan. Bake for a further 2 minutes or until the cheese is melted and the prosciutto is crisp. Makes 4.