Preheat your oven to 375°F (190°C).
In a large mixing bowl, combine the shredded chicken, frozen vegetables, cream of chicken soup, milk, garlic powder, salt, and pepper. Stir until well mixed.
Pour the mixture into a greased 9x13 inch casserole dish and spread it out evenly.
Top the mixture with the biscuit dough. Just place them right on top—no need to get fancy.
Brush the tops of the biscuits with melted butter if you want that golden glow.
Bake uncovered for 25 to 30 minutes, or until the biscuits are cooked through and golden brown.
Let it cool for 5 minutes before serving. Watch it disappear.