Heat a medium skillet over low-medium heat. Add the butter, onion, celery, and garlic powder. Cook for 4-5 minutes until the vegetables soften then remove from heat.
1 tablespoon unsalted butter, ½ cup white onion, ¼ cup celery, ½ teaspoon garlic powder
In a large mixing bowl combine the sautéed vegetables, cream of mushroom soup, and sour cream. Spoon the mixture over the pork chops.
1 (10 ½ ounce) can cream of mushroom soup, 4 ounces sour cream
Fluff the stuffing with a fork, and spoon it over the soup mixture. Cover the pan tightly with aluminum foil, and bake for 20-30 minutes (adjust the time depending on the thickness of the pork chops).
Remove the foil about 5 minutes before the pork chops finish cooking, and return the pan to oven to crisp up the stuffing. Ensure the pork chops reach 145°F on an instant read thermometer. Serve warm!