Set the oven at 450°. Line a baking sheet with aluminum foil and spray or wipe it with olive oil. Or, use a non stick pan but still spray or wipe with the oil.
About the potatoes. If you want to serve them whole, like baked potatoes, give them a head start for a few minutes in the microwave while you prep the carrots and pork chops.
If you want to serve them cut up just chop them into about one inch cubes and spread them out on the baking pan. Then drizzle with a little olive oil and sprinkle with salt and pepper.
Peel and cut up the carrots into large french fry shapes or just use "baby carrots". Spread them out on the pan and sprinkle with salt, pepper and brown sugar.
Cut the onion into strips. Salt, pepper and garlic powder both sides of the pork chops. Lay them out on the baking pan and spread the onion strips out on top of them.
Into the oven for about fifteen minutes. When the pork chops are firm or read 145° on an instant read meat thermometer and the veggies are easy to poke with a table fork your Oven Baked One Pan Pork Chop Dinner is ready to serve.