Process first 6 ingredients in a blender until pecans are finely chopped.
Dredge pork chops in flour. Dip in buttermilk; dredge in pecan mixture. Chill 1 hour.
Arrange pork on a rack coated with cooking spray. Place rack in a 13- x 9-inch pan. Coat pork evenly with cooking spray.
Bake at 425° for 15 minutes. Turn pork, and coat evenly with cooking spray. Bake 5 more minutes or until done.