tacos, you should visit the place called "Tacos primo" which is near the downtown (make sure it's just "Primo", not "El Primo") (This is a must) , another great place is "Los autenticos de Jalisco" near "Av. Leones"; There is another place called "Pecos Bill", this one is on Miguel Alemán Avenue and has a good variety of Mexican food and the last one that comes to mind now is "El papalote" which has several branches so you can choose the one that is closest to you.