Preheat oven:
Set oven to 275°F (135°C).Season pork chops:
Coat both sides of pork chops with salt, pepper, onion powder, and 1 tsp rosemary.Sear pork chops:
In a large sauté pan over medium-high heat, warm 2 Tbs vegetable oil. Sear pork chops until browned, roughly 3-5 minutes per side. Transfer to a 9x13-inch baking dish and set aside.Make soup-rice mixture:
In a medium saucepan, whisk together cream of mushroom soup, cream of chicken soup, milk, the remaining 1 tsp rosemary, and thyme. Stir in rice. Add butter and set pan over medium heat; bring to a gentle boil while stirring until butter melts.Bake covered dish:
Pour the soup-rice mixture over the pork chops in the dish. Cover tightly with aluminum foil and bake for 2 hours.Garnish with parsley:
Take out of oven. If desired, sprinkle with parsley for garnish.