Preheat the Oven: Preheat your oven to 425°F (220°C).
Season the Pork Chops: Rub the ranch seasoning mix evenly over both sides of the pork chops.
Prepare the Brussels Sprouts: In a bowl, toss the halved Brussels sprouts with olive oil, garlic powder, onion powder, salt, and pepper until well coated.
Arrange on Sheet Pan: Place the seasoned pork chops on one side of a large sheet pan. Arrange the Brussels sprouts on the other side.
Bake: Roast in the preheated oven for 20-25 minutes, or until the pork chops are cooked through and reach an internal temperature of 145°F (63°C) and the Brussels sprouts are golden brown.
Serve: Remove from the oven, garnish with fresh parsley if desired, and enjoy your delicious meal!