Curried chicken pie

Name: Curried chicken pie
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Asian, Indian
Ingredients: 2 tbsp cold pressed rapeseed oil; 500g chicken breasts cut into chunks; 4 spring onions sliced; 3 garlic cloves grated; thumb-sized piece ginger grated; 1 tbsp curry powder; 1 large head broccoli cut into florets, top of stalk thinly sliced; 1 tsp soy sauce; 250ml low-fat coconut milk plus a splash; 250ml chicken stock; 1 heaped tsp cornflour mixed with 1 tbsp hot water; 4 large handfuls kale; 4 sheets filo pastry; ½ tbsp nigella seeds