2 cups frozen peas and carrots

2 cups frozen green beans

1 cup sliced celery

2/3 cup butter

2/3 cup chopped onion

2/3 cup all-purpose flour

1 teaspoon salt

1 teaspoon ground black pepper

1/2 teaspoon celery seed

1/2 teaspoon onion powder

1/2 teaspoon Italian seasoning

1 3/4 cups chicken broth

1 1/3 cups milk

4 cups cubed cooked turkey meat - light and dark meat mixed

4 (9 inch) unbaked pie crusts