Coco's, which is slightly south of 21st on the drag, has decent chinese food.
Like Dave said, Madam Mam's is really good if you like Thai. Crave, on 21st @ Guad, has really good Thai curry. Crave also has Sushi, but i like the sushi at Sushi Nichi(spelling? Its a few blocks west of the drag on 24th) better, esp M-Th 4-6 (Half price on a lot of stuff).