You're looking for cheap lunch here:

Kwik Meal (cart) 45 St. @ 6 Ave.	In'n'Out: 3m Genre: Pita's 'N' Stuff
Jimbo Says: OK Delicious food, small portions.  I didn't really get what this guy was going for, snobby street food? I'm not taking chances with shrimp from a cart.

Jin Chuan Garden 9W 46th St.	In'n'Out: 2m 27s Genre: Chinese
Jimbo Says: OK Nothing special, but definitely fast, cheap, and filling.

Park Italian Gourmet 60 W 45th	In'n'Out: 4m 37s Genre: Deli
Jimbo Says: Good For some reason ordinary delis are rare in this hood, but this one hits the mark.

Margon Restaurant 136 W 46th St.	In'n'Out: 4m 37s Genre: Cuban
Jimbo Says: Good This place is more of an experience than a restaurant. Order anything on the menu, and let the island ladies treat you right...

[Cart] 49th @ 6th (Closest to sw corner)	In'n'Out: 2m Genre: Halal
Jimbo Says: Good These guys have years of experience.  The speed says cart, but the flavor says "Ohhhhh Yeeeaaahhhh."

[Soup Dude] 49th and 6th Ave.	In'n'Out: 1m Genre: Soup
Jimbo Says: Good Dude gave me free soup!  What more can I say?