I lived in Korea for a while and really love Korean food. Omma kind of takes a modern twist on the traditional meals, but in all the best ways.
I highly recommend the bibimbap, as well as the sam bap bulgogi.
The bibimpab is a rice and vegatable mix in a steaming hot bowl. You mix it up as the bowl cooks everything.
The sam bap bulgogi is similar to korean BBQ. You get little pieces of BBQ beef that you dip in sauce and wrap into mini lettuce sandwiches. It's excellent!
I also recommend you grab a bottle of soju to compliment the food.
My only critique is that it's slightly expensive in general. A few dollars more per item than should be.