PREHEAT broiler. Brush salmon with oil. Place on greased rack of broiler pan.

BROIL, 2 to 4 inches from heat, 6 to 7 min. or until salmon flakes easily with fork.

MEANWHILE, cook and stir leeks in butter in medium skillet on medium heat 5 min. or until tender. Add remaining ingredients. Reduce heat to low; cook until cream cheese is completely melted, stirring frequently. Serve with the salmon.