For authentic Mexican food in a lively atmosphere, try this Clark Street spot. On weekends, Frontera is always packed, but people do not seem to mind the wait. If you are lucky, you can grab a small table at the bar section and start on drinks and appetizers before you are seated. Basic margaritas are around USD4, but you can try fancier varieties for a few bucks more. The Queso Fundido is good eating&emdash;a spicy cheese and onion dish wrapped in hot tortillas. Main courses start at USD15.
• Hours: 11:30a-2:30p, 5p-10p Tue-Thu; 11:30a-2:30p, 5p-11p Fri; 10:30a-2:30p, 5p-11p Sat