
Spray 3 1/2- to 4-quart slow cooker with cooking spray. Sprinkle both sides of pork chops with ranch dressing mix. Place pork chops in slow cooker. Pour soup over pork chops.
Cover; cook on Low heat setting 5 to 6 hours or until fork-tender. Remove pork chops from slow cooker, and place on plate; cover to keep warm.
In small bowl, stir cornstarch and 2 tablespoons water until well blended; stir into mushroom sauce in slow cooker. Cook on Low heat setting 3 to 5 minutes or until thickened. Serve over pork chops.