Place fish on rack of a broiler pan coated with butter spray. Coat fish with butter spray; sprinkle with lemon-herb seasoning and salt.
Broil fish 5 1/2 inches from heat 8 minutes or until fish flakes easily when tested with a fork.
While fish broils, combine pineapple and remaining ingredients. Top each fillet with 1/4 cup pineapple salsa.