Prep: 6 minutes; Cook: 13 minutes
1. Sprinkle fillets evenly with salt and pepper. Heat a large nonstick skillet over medium-high heat; coat pan and fillets with cooking spray. Add fish to pan, skin sides up. Cook 3 minutes or until lightly browned. Remove from pan.
2. Coat pan with cooking spray. Add fennel and onion; sauté 3 minutes. Add tomato, tapenade, and lemon juice; stir well. Return fillets to pan, nestling them into fennel mixture. Cover and cook 7 minutes or until fish flakes easily when tested with a fork or until desired degree of doneness. Spoon fennel mixture over fillets to serve.