Broadway Au Lait
Asides from its reasonable-priced, reasonably-weak coffee, Broadway Au Lait specializes in Mediterranean food, mainly slightly-overpriced hummus/pita/falafel. It also has excellent baklava which pairs well with its coffee (and is a tempting study break for those working in Burke Library).
Broadway Au Lait also has ten or twelve tables. It being far enough from campus, they are a civilized place to read or quietly chat.