Heat oil in heavy skillet over medium-high heat. Brown chops on one side, about 2 minutes. Turn chops. Add taco sauce, chilies and cumin to skillet: mix well. Lower heat, cover and barely simmer for 12 minutes. Uncover, top each chop with one or two tablespoons of cheese. Cover and simmer an additional 2-3 minutes, until cheese melts. Serve immediately.