I've got a friend visiting for a couple of weeks from Taiwan. She wants to try lots of Latin American food, she has no dietary restriction and a bottomless stomach.
So far I've come up with these possibilities
Delany's for Bolivian
Roosevelt Tamale Parlor
Venga Empanadas- Argentinian style not as good as in Argentina but cheap and tasty
skipping Canto Do Brazil, have had bad food and service there