Add all of the ingredients, EXCEPT the biscuits and garnishes, to a large mixing bowl. Stir together until evenly combined.
2 cups chopped rotisserie chicken, 1 10.75 oz can cream of chicken soup, 1 10.75 oz can cream of celery soup, 3-4 cups frozen mixed vegetables, 3 tbsp cream cheese, 1/3 cup sour cream, 1/2 tbsp minced onion, 1/2 tsp garlic powder, pinch seasoned salt & ground pepper, 6 oz two bite honey gold potatoes
Lightly spray a 9x13" baking dish with non stick spray. Transfer the filling to the dish, and spread out in an even layer.
Open the biscuits, and separate them. Using kitchen shears, cut each biscuit into six equal pieces. Lay all of the biscuit pieces evenly out overtop of the pot pie mixture.
1 16.3 oz tube refrigerated flaky biscuits
Brush the melted butter over the biscuits, and sprinkle the Parmesan cheese evenly out overtop.
2 tbsp melted butter, 1/4 cup grated Parmesan cheese
Bake the casserole at 350° for 30-35 minutes, or until the biscuits are cooked through and golden brown on top.
Carefully remove the hot dish from the oven, and let it rest for 5-10 minutes.
Serve warm & enjoy!