Over medium-high heat, melt butter in a large saucepan. Add pork chops and cook until browned on both sides. Season with salt and pepper. Top with onion slices.
2
In a bowl, stir together soup, ketchup and Worcestershire sauce. Pour soup mixture over pork chops.
3
Cover pan and simmer until meat is no longer pink inside and thermometer reads 160 to 170 degrees F (71 to 77 degrees C), about 20 to 30 minutes.