Instructions

Peel, cube and boil pumpkin until tender, about 20 minutes. Drain, then mash and leave to cool.
 
Meanwhile, chop the mushrooms and dice the chicken. Cook chicken and mushrooms in a saucepan with no oil (the juice from the mushrooms will stop the chicken from sticking) until the chicken is thoroughly cooked. At this stage you can add almost anything you think you'd like in a pie. Just becareful of any foods with a high water content as they will effect the consistancy. Stick with starchy veg or meats.
 
When cooked, drain the chicken and mushrooms, and add the mushroom soup & water, keeping on the heat so that they mix well - about 2-3 mins. 
 
While waiting for the chicken to cook, add the egg and flour to the mashed cooled squash, mixing to form the pastry. 
Pre-heat oven to 200 degrees C.
 
Roll the pastry out on to a well floured surface - it will be very sticky so use lots of flour.
 
Line the 3 non stick pie tins (or disposable ones which have been greased to prevent sticking) with pastry, pricking the bottom of the tins to prevent the pastry from going soggy. Blind bake for 10 minutes.
 
Spoon filling into the pie and use remaining pastry for the lid. Brush with the egg wash glaze if desired. 
Bake in a pre-heated oven on 200 degrees C for 30 minutes or until golden.