I have a thing for chicken pot pie but I dont like pastry. I like biscuit style or crumble type toppings they are more up my alley; like bread. This is an America's Test Kitchen recipe and you need a subscription to access it but I found a link to it here. Fair warning as with most ATK recipes there are a million ingredients/steps :)
Note: My only real change on this recipe is that I would actually reduce the crumble topping by half I found the bread/filling ratio a bit off. I really like the crumble bits on the second day too if you stir them in then heat the dish they almost become like dumplings.