Tres chilitos (mexican) used to be good a couple of years ago, but quality has gone downhill since the owner's untimely passing.

There's a few newer Peruvian spots that are quite good, but they haven't been around long enough or have enough quality to warrant a recommendation.

Kikiriki (peruvian) has great rotisserie Peruvian style chicken. But it's pretty much takeout only.

There's also a newish Peruvian spot at the corner of jfk blvd and Lincoln (the site of the old Vinnies pizzeria if you remember it). I've tried a couple of things there and thought it was decent, but its also more of a takeout spot.

Noches de colombia is ok, but not the great value it used to be some years ago.

Rumbas is probably the best of the sit down, no frills, good food, good value.

The best lunch value is probably La Concha (near Charles and Central ave). Delicious and huge portions.