Season pork chops with salt and pepper. Brown pork chops in frying pan with oil. Place chops in prepared dish.
Add onion to skillet that you browned the chops in. Cook until onions are tender and lightly browned.
Add soup, water and mushrooms and scrape browned bits off the bottom of the skillet.
Pour gravy over pork chops. Cover and bake for 1 hour.
Serve with rice or over pasta.