Gently fry the leeks until soft, add some plain four and make a roux.
Now add milk a little at a time until you have a white sauce.
Cool slightly and stir in the peas, dill and parsley.
Mash the potato with wilted kale and butter.
Place the fish pie mix into a small oven dish. Top with the herby leek sauce.
Next add some chopped hard boiled egg.
Now add the mash and run a fork over to create a nice pattern.
Sprinkle with breadcrumbs and bake for about 25 minutes until golden.
Serve with winter greens.