1. Cut pineapple lengthwise into 6 spears. Combine soy sauce and next 5 ingredients in a large zip-top plastic bag. Add pineapple and fish to bag; seal and marinate in refrigerator 30 minutes, turning bag once. Remove fish and pineapple from bag, reserving marinade.
2. Prepare grill.
3. Place fish and pineapple on grill rack coated with cooking spray; cover and grill 4 minutes on each side or until fish is medium-rare or desired degree of doneness, basting frequently with reserved marinade. Garnish with green onions, if desired.
carbo rating: 19