Bring a steamer pot of hot tap water to a boil. Spray a baking dish with oil spray.
Make potato top
Peel 600 g potatoes and 2 parsnip and cut them into chunks. Cook potato and parsnip in the steamer pot of boiling water for 12-15 minutes, or until tender. Drain then transfer the potato to the bottom pot. Add 1 tbsp olive oil and ¼ cup milk, season with salt and pepper and mash until smooth.
Start filling
Meanwhile, slice 1 leek in half lengthways then thinly slice. Thinly slice 2 stalks celery. Grate 2 carrots. Peel and mince 2 cloves garlic. In a large frypan, heat 1 tbsp olive oil over high heat. Cook 600 g pork mince and leek, stirring occasionally, for 4-5 minutes or until browned and cooked through.
Finish filling
Add carrot and celery and cook for 2-3 minutes, until softened. Add garlic, 1 tbsp Italian seasoning, 1 cube chicken stock and ¼ cup tomato paste, then cook, stirring for 1 minute. Reduce the heat to medium, then add ½ cup coconut cream and stir to combine. Cook for 3-4 minutes, until thickened. Season to taste with salt and pepper.
Grill pie
Preheat grill to medium-high. Transfer the pork mixture to the prepared baking dish and top with dollops of mashed potato on top. Grate over 50 g cheese and grill for 8-10 minutes or until the cheese is melted and golden. Pick the leaves and roughly chop 1 bunch parsley, discarding the stems.
Divide creamy pork and veggie pie with cheesy potato top between plates. Garnish with the parsley.