Hi Clara... coincidently, I'm moving out of 195 Broadway (moving to Times Square).
Here are my lunch survival techniques...
Les Halles - steak frites, mussels, burgers, traditional French Brasserie
Seh Jah Meh - Korean, nice lunch menu
Sushi a La Kawa (my area favorite) OR Yoro's - sushi
Sophie's - Cuban, they are a small chain but pretty good
Alfanoose - can't go wrong, especially their califlower sandwich (and desserts)
O'Hara's - pub, with good burgers
Lili's - Chinese, in the Embassy Suites building just North of the World Financial Center
Zeytuna - great deli bar, sandwiches, hot food, etc
Lemongrass Grill - Thai (more presentable then Bennie's)
Diwan-E-Khaas - Indian, across from the American Greetings card store
There are some nice happy-hour locations, if you are interested. Amy
/\ OP, do you work for Thomson Financial?
Not much in the immediate vicinity - Zeytuna is a good choice, a great variety of food, and their shishkebabs are much better than Alfanoose. Bennie's Thai on Fulton is the best Thai on Wall St. in my opinion. I also second Zaitzeff for burgers.
Of course if you start walking north you are in Tribeca, so that's a plus.
I third alfanoose, I used to live down there after 9/11when there were no not many options. Les Halles is good, and popeye's is nearby,.I think any reasonable hound will agree, fast food chain or not Popeye's is good fried chicken. Good luck otherwise, I never found any hidden gems down there, other than alfa...