Soba Nippon [19 W. 52nd St. (bet. 5th and 6th Aves.) 212-489-2525]
One of my favorite lunch spots, Soba Nippon grows its own buckwheat for its fantastic soba noodles. My favorite is the Zaru Soba lunch which comes with a salad and tofu sushi. I will often supplement this with a toro scallion roll, showing that this place is not one-dimensional, but the noodles are clearly the best and superior to any others I have had in America.