Deep Dish Chicken PotPie
Recipe for pastry topper:
med. bowl, stir 1 1/4 all purp flour, 1/4 teaspoon salt. Cut in 1/3 cup shortening, til pea sized. Sprinkle 1 tablespoon cold water over part of mixture, gently toss with fork. Push moistened dough to side of bowl. Sprinkle in additional tablespoons 1 at time throughout rest of flour until all is moistened, form into ball. Set aside. roll out to cover baking dish. Cut slits to let out steam.
1 cup chopped leak. (3 med, or 1 large onion)
1 cup sliced fresh mushrooms
3/4 cup sliced celery
1/2 cup red sweet pepper 
2 tablespoons butter
1/3 cup flour
1 teas poultry seasoning
1/4 ts salt
1/4 teas black pepper
1 1/2 cup chicken broth
1 cup half n half or milk or light cream
2 1/2 cups chopped cooked chicken
1 cup frzn peas and carrots
1 egg, beaten
step 1
Prepare pastry, set aside
2. Large saucepan, cook, leek, mush, celery, and sweet pepper in butter 4 to 5 mins or til  tender. Stir in flour seasonings,. Add broth and milk all at once. Cook and stir until thickened and bubbly. Stir in chicken and peas and carrots. Pour into 2 quart rectangular baking dish.
3. Place pastry over chicken mix into dish. Turn edges of pastry under, flute to edges of dish.Brush pastry with beaten egg.
4. Bake uncovered in 400* oven, for 30-35 minutes or until crust is golden brown. Let stand for 20 minutes before serving. 
I changed mine to onion, broccoli, diced canned potatoes, and some cabbage, chopped. Jim told me I should have also added corn. I also topped the creation with some shredded cheese before adding the pastry. 
Oh Aneesa, thanks for asking bout the adopted kiddos... They are doing wonderfully. They have been kept togather and have also acquired a new beau. He's been taking great care of them, and they are rewarding us with an egg everyday. Well, one of them is treating us. lol