I was lucky enough to visit a good Colombian restaurant a week ago. It is called "Antojitos," a shortened version of "Antojo de mi Tierra" (Cravings from my Land). It is a bustling place on Columbus.
They have great, giant pork chops pounded thin and fried--- as big as a plate. Their tamales are stuffed with veggies, meat and bones (for flavor). They have great meat pies: thin cornmeal shell stuffed with ground meat and potatoes. Great to dip in "ahi," a type of thin salsa made with chiles. Very tasty.
Great fruit shakes, light and tasty made with pureed fruit and milk--- very simple, drinkable, and doesn't fill you up. Lots of fruit flavors to try that i've never heard of.
Their portions are very generous, and served piping hot--- it's a Colombian thing. Very hot soups and beef stews (beef, veggies, corn on the cob, etc).
Fans of La Teresita take note: this place may not be quite as cheap, but it's much better food. Friendly people abound in front of and behind the counter.
I look forward to eating there again.