HEAT oven to 375ºF.
PLACE first 5 ingredients in large bowl. Add half each of the cheese and barbecue sauce; mix well. Press half onto bottom of 9x5-inch loaf pan.
COVER with half the ham, remaining cheese and remaining ham; top with remaining ground beef mixture. Shape into loaf.
BAKE 1 hour 5 min. or until done (160ºF), brushing with remaining barbecue sauce after 50 min. Let stand 5 min. before slicing.