1In medium bowl, mix all salsa ingredients until well blended. Cover and refrigerate about 20 minutes or until chilled.
2If fish steaks are large, cut into 6 serving pieces. In shallow glass or plastic dish, mix all remaining fish ingredients. Place fish in dish; turn to coat with marinade. Cover and refrigerate at least 30 minutes but no longer than 2 hours.
3Heat coals or gas grill for direct heat. Remove fish from marinade; reserve marinade. Cover and grill fish over medium heat 15 to 20 minutes, brushing 2 or 3 times with marinade and turning once, until fish flakes easily with fork. Discard any remaining marinade. Serve fish with salsa.