Far Far West 20's
Unfortunately, not too familiar with restaurants around that area, so don't know too much about where to eat. However, I would recommend Co as well for pizza around that area. When it comes down to good coffee shops, Joe (23rd and 9th) does a great job with coffee, espresso, etc. If you're also willing to walk down a bit south(west), in the Chelsea Market, there also is another coffee shop (more like a stand I guess) called Ninth Street Espresso, which is my personal favorite. Also in the Chelsea Market is a bakery called Fat Witch Bakery, and I heard their brownies are extremely good, worth trying if you decide to head into the Chelsea area.
If she's working on the extreme west side, Chelsea Market would be south and east. The back entrance is on 10th, b/t 15th & 16th Sts.
Fat Witch is not the only good sweet thing to have there. L'Arte del Gelato has some of the best gelato in the city. Not-to-be-missed!
L'Arte del Gelato photos: http://www.flickr.com/photos/11863391@N03/sets/72157624376967932/
There are a number of places for sandwiches, soups, salads, etc. Here's the link to the list of vendors:
(Note: You can still correct your title as there is a 3-hour window for editing.)
Bottino is on 10th, b/t 24th & 25th. Food's very good. They've got a nice selection of salads on the lunch menu. Lovely garden as well.
Bottino photos here: http://www.flickr.com/photos/11863391@N03/sets/72157624341101728/
Trestle on Tenth is on the corner of 10th & 24th. Tasty food. The lunch menu includes soup, salads and sandwiches. Also has a sweet little garden.