Combine garlic, lemon juice, 1 tablespoon parsley, mint, salt, pepper, and parmesan (reserve some for topping) into food processor or blender. Pulse until smooth and set aside.
Heat gas or charcoal grill to high heat.
Toss okra with 1 tablespoon olive oil.
Using a grill basket or skewers, grill okra for about 3-5 minutes per side, or until well-charred.
Remove from grill.
Drizzle mint sauce over okra and top with toasted pine nuts, reserved parmesan cheese and remaining fresh parsley.