Low-fat chicken and mushroom pie

Ingredients (serves 4):
Filling:
340g chicken breast, without skin
1 large onion, diced
1 carrot, diced
115g white button mushroom
115g white Japanese mushroon (optional)
55g green peas
1 tbsp chopped pasley (香芹)
1 tbsp plain flour
15g butter
300ml skimmed milk

Pie crust:
185g self-raising flour
20g butter
80ml skimmed milk
1/4 tsp salt
1 egg, lightly beaten

Method:
Filling:
1. Melt butter in a pot and put in 1 tablespoon of plain flour. Mix well. Add milk bit by bit, stirring constantly until mixture is smooth.
2. Put in chicken breast, mushrooms, onion, carrot, green peas and parsley and cook for 5 minutes, stirring occasionally. Transfer to a deep baking dish.

Pie crust:
1. In a large mixing bowl, rub butter into self-raising flour until it resembles breadcrumbs. Add milk bit by bit until it forms a soft dough.
2. Roll out to fit the top of the baking dish, seal edges, and brush on beaten egg. Set oven to 180 deg C with upper/lower function.
3. Bake on lower shelf for 30 minutes until crust is golden brown.

Recipe source: Today newspaper