Easy, cozy, and even better the next day - what more could you want in a weeknight dinner recipe? It also freezes well uncooked to have for a day when you don't have time for making a meal.
Whisk in chicken broth and milk a little bit at a time stirring after each addition. It will be very thick at first but will smooth out. Bring to a boil over medium heat and simmer 1 minute. Remove from heat and stir in chicken, vegetables, and potatoes.
Line a 9" pie plate with one of the crusts. Fill with chicken filling. Brush edges of crust with egg wash and top with second crust. Pinch edges to seal and cut a few slits to vent pie. Brush with egg wash.