Chef Bob Burger is a tasty place to eat in Cheonan and you should go there.
It’s located near the Starbucks, but unfortunately I can’t give you exact directions because I don’t really know how to do that in South Korea yet.
They serve “burgers” with rice “buns” instead of bread buns. The meat of the burger is a mystery to me, but so far I’d be willing to bet the meat I’ve eaten inside them is from a cow and occasionally a tuna fish that ran into a lot of mayo.
You can order for here or to go, and it’s really cheap. Anywhere from 2,000 3,500 won for a burger. You can also order a side of ddeokbokki, which is a mixture of really squishy rice and fish cake in a hot sauce. Ddeokbokki is good in small amounts and bad in large amounts. Chef Burger Bob has nice ddeokbokki.