A quick, easy comfort meal that is so good and hearty.
Combine chicken, carrots, peas, and celery in a saucepan, add water to cover and bring to a boil. Boil for 15 minutes, then remove from the heat and drain.
Bake in the preheated oven until pastry is golden brown and filling is bubbly, 30 to 35 minutes. Cool for 10 minutes before serving. Enjoy!