Grilled Marinated Tuna

Directions

1. 1
   Trim away any dark red portions of the tuna.
2. 2
   Cut the tuna into 1 1/2-inch squares and place in
3. 3
   a nonmetallic bowl.
4. 4
   Add the garlic, onion, oregano and pepper and toss well, rubbing the seasonings into the fish.
5. 5
   Add the wine, oil, bay leaf and orange rind and turn the fish to coat with this mixture.
6. 6
   Marinate for 30 minutes at room temperature.
7. 7
   Prepare the grill.
8. 8
   Thread alternating pieces of the tuna and zucchini snugly on skewers. Grill about 5 minutes on each side, brushing occasionally with the reserved marinade, until lightly browned.
9. 9
   Serve immediately.