Creating Chicken and Dumpling Casserole is easy when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Combine Chicken Mixture: In a large bowl, mix the shredded chicken, frozen vegetables, cream of chicken soup, chicken broth, olive oil, garlic powder, onion powder, paprika, and black pepper. Stir until everything is well combined.
3. Transfer to Casserole Dish: Pour the chicken mixture into a greased 9×13-inch casserole dish, spreading it evenly.
4. Make the Dumpling Batter: In another bowl, whisk together the buttermilk, flour, baking powder, and salt until just combined. The batter will be slightly lumpy; do not overmix.
5. Spoon Dumpling Batter: Drop spoonfuls of the dumpling batter evenly over the chicken mixture. It does not need to cover everything completely; the dumplings will spread while cooking.
6. Bake the Casserole: Place the casserole in the preheated oven and bake for 45-50 minutes, or until the dumplings are golden brown and cooked through.
7. Cool Slightly: After removing from the oven, let the casserole sit for about 10 minutes.
8. Garnish: Sprinkle with chopped fresh parsley if desired for added color and flavor.

These simple steps will lead you to creating a Chicken and Dumpling Casserole that’s beautiful and delicious!