1. Heat a large grill pan coated with cooking spray over medium heat.
2. Sprinkle fillets evenly with salt and pepper. Set aside.
3. Combine pesto and wine, stirring well.
4. Place fillets on grill pan, and grill 6 minutes on each side or until fish flakes easily when tested with a fork. Serve fish with pesto sauce.
5. carbo rating: 1