1In 1-cup glass measuring cup, beat all dressing ingredients with wire whisk.
2Set oven control to broil. On rack in broiler pan, place fish; spray tops of fish with cooking spray. Sprinkle tops of fish with 2 tablespoons lime juice and the seasoned salt. Broil with tops 4 to 6 inches from heat 6 to 8 minutes or until fish flakes easily with fork.
3Meanwhile, on each of 4 plates, arrange 1 cup salad greens. Divide pineapple among plates. Place fish on or next to greens. Sprinkle greens and fish with mint. Serve with dressing.