In a 3-quart casserole combining cabbage and ½ cup water. Micro-cook, covered, till leaves are pliable, about 8 minutes. Let stand, covered, till cool. Combine egg, milk, crumbs, onion, salt, thyme, and pepper. Add meat; mix well. Place about ¼ cup meat in center of each cabbage leaf; fold in sides and roll ends over meat mixture.