Preheat your oven to 375°F (190°C).
In a large bowl, combine the shredded chicken, frozen vegetables, cream of chicken soup, chicken broth, garlic powder, onion powder, pepper, and salt.
Mix well until fully combined.
Pour the chicken mixture into a greased 9x13-inch baking dish.
Sprinkle the shredded cheddar cheese evenly over the chicken mixture.
Unroll the refrigerated pie crust and place it over the top of the filling.
Cut slits in the pie crust to allow steam to escape.
Bake in the preheated oven for 30-35 minutes or until the crust is golden brown.
Remove from the oven and let it cool for 5 minutes before serving.
Enjoy your delicious chicken pot pie casserole!