Combine first 3 ingredients in a food processor, and process until minced. Add mango and next 4 ingredients; process until smooth. Place mango mixture and fish in a zip-top plastic bag; seal and marinate in refrigerator 20 minutes. Remove fish from bag, reserving marinade. Pour reserved marinade into a small saucepan, and bring to a boil. Reduce heat, and simmer 5 minutes. Remove from heat.
Prepare grill or broiler.
Sprinkle fish with salt. Place fish on a grill rack or broiler pan coated with cooking spray. Cook 4 minutes on each side or until fish flakes easily when tested with a fork. Serve with mango sauce.