Chicken and leek pie

I found this recipe on 'Feeding boys and a firefighter', here. For once, I've pretty much followed what it says... although I put in a bit less mustard because Small Person has rejected mustardy things in the past. Anyway, here's my attempt:

Also, not having two small ovenproof dishes, I've done it in one medium sized oven proof dish... Served with roasted baby new potatoes (cut the big ones into chunks the size of the small ones, put on a baking tray with some oil), broad beans and peas (from the freezer) and courgettes (from my Dad's allotment).