Combine eggs with milk, bread crumbs, onion, salt, sage, and meat. Mix well and shape into 9x5 inch rectagle or oval, or about 6 inch round. Carefully place in slow-cooking pot. Cook on low for 5 to 6 hours. Combine sauce ingredients in small bowl; pour over meat. Cover and cook on high 15 minutes longer. Slice and serve while hot or use cold slices for sandwiches.