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 cornflourmixed with 1 tbsp hot water; 4 large handfuls kale; 4 sheets filo pastry; ½ tbsp nigella seeds