370g/13oz leeks, finely chopped
110g/4oz oyster mushrooms, sliced
2 sprigs fresh rosemary, leaves only, chopped
1 tbsp fresh sage, finely chopped
55g/2oz wild rice
salt and freshly ground black pepper
200g/7oz packed cooked and peeled chestnuts, chopped
2 tbsp olive oil
1-2 tbsp soy sauce
15g/陆oz vegan margarine
225g/8oz ready-made puff pastry (thawed if frozen)