Saute leek and kale in olive oil.Sprinkle cheese onto pie shell.Spread leek and kale evenly in the pie shell.Meanwhile, cut the fish into chunks; simmer in water and herbs.Drain.Mix with the Bechamel Sauce and pour into pie shell, covering the kale and leek mixture.Sprinkle with parmesan. Bake at 375 F. for 25 minutes.