Dongbei Siji Jiaozi Wang (东北四季饺子王)
This place rocks. Great place to get a ton of great food for cheap - don't miss the potato and eggplant.
Obsessed with this place! When I first found it I went 3 times in 3 days. Cucumbers, potato with eggplant, tomato and egg, beef and potato dishes are all favourites.