Great idea to plan this as part of a 3 day menu, where you have gammon on day 1, roast chicken dinner on day 2 and use the leftovers to make this delicious pie on day 3. Failing that, boil 3 chicken breasts in chicken stock in a covered pan for 10 minutes and roast a joint of gammon and use what you need to for this recipe and keep the rest back for another day.
When I do this, I usually do this preparation in the morning. Then I leave the mixture from step 4 in the saucepan with a lid on through the day, until I am ready to do the final prep before serving, as it only takes 30 minutes it can be done in tandem with mash and veg prep.
My first pie and it came out really well and delicious family have already asked for it again so will no doubt become a regular item. - 16 Nov 2016
Delicious..thank you!! I used short crust pastry on mine tho - 25 Mar 2015