Mix the burgers ingredients together; form into burgers of equal size about 1/4 inch thick without compacting the meat. Sprinkle the seasoning mixture of spices on both sides of patty. Grill or broil, 4" from souce of heat, for 3 minutes on each sides for medium-rare patties. Place the mozzarella cheese on center of each patty. Cook for another minute and until cheese melts. Serve each patty on a warmed 8" flour tortilla, topped with a tomato slice, cilantro sprigs, and taco sauce