Heat zucchini milk, water, butter and honey together. While this mixture heats, combine cornstarch, salt, lemon rind and juice and add to zuchini mixture.
Cook, stirring constantly, until thick. Beat egg yolks and add a little hot zucchini mixture to them. Stir well.
Then put everything into the hot zucchini mixture and cook one minute.
Remove from heat and pour into baked pie shell and top with meringue made by beating egg whites until stiff, then adding one tablespoon warmed honey slowly while continuin to beat.
Bake in preheated 400 degree oven until golden brown (about five minutes). Cool and serve.