HEAT oven to 375ºF.
MIX ground beef, cracker crumbs, eggs, onions, garlic, pepper and 1/4 cup barbecue sauce just until blended.
PLACE meat mixture into 11x8-1/2-inch rectangle on sheet of waxed paper; top with ham and cheese, spreading ingredients to within 1-1/2 inches of edges. Roll up tightly, starting at one short side and pulling away waxed paper as meat is rolled. Place, seam side down, on foil-covered rimmed baking sheet.
BAKE 48 to 50 min. or until done (160ºF), brushing with remaining barbecue sauce after 40 min. Remove from oven. Let stand 5 min. before cutting into 8 slices.