For the zucchini version:
- Slice both ends of zucchinis and then slice in halfs over the length. Holllow out zucchinis flesh.
- In a bowl, mix chopped Proscuitto, sliced leeks and pepper.
- Garnish zucchinis with leeks mix and cover all with cheese. Oven bake at 350°F (180°C) for 10 to 15 minutes. Complete cooking at grill.