Trim fat from meat. Make a pocket in each chop by cutting horizontally from the fat side almost to the bone or the opposite side. Divide filling among pockets in chops. If necessary, secure the openings with wooden toothpicks.
For rub, in a small bowl combine black pepper, oregano, garlic, red pepper, and thyme. Rub evenly onto all sides of meat. Place chops on a rack in a shallow roasting pan. Bake for 35 to 40 minutes or until done (145 degrees F) and juices run clear. Brush vinegar onto chops the last 5 minutes of baking. Before serving, discard toothpicks.