On the Border is a US-based Mexican restaurant franchise.  While it's not a household name yet, with 160 locations across the United States, it deserves a credit for being good Mexican food that's had national success in a very tough market, the USA.

So, if one should crave for an authentic Mexican dish, On the Border is a great option in Seoul where Mexican food still hasn't hit big.  

Ordering the Big Boduritto with chicken will set you back a little over 20,000won and Chicken Chipotle Fajita 25,900won.

There are four locations -- Sichon, COEX, Time Square Mall and Apgujeong 

Get out of exit #2 at Sinchon Station (green line) and head toward Ehwa Univ.

On the Border is located on the 2nd fl. of the YBM building.