2 nites: good restaurants near hampton inn on west 51st?
DB bistro modern on 44st between 5th an6th is a nice place. Go pre theater (42$) before 7pm.
Bar boulud on broadway and 60th st is really good (great charcuterie and wine bar).
try Bouchon bakery in the time warner center before 9pm. It 's in a shopping mall but the salad, sandwiches are tasty.
Benoit (55th at 6th) and brasserie Cognac (broadway at 55th) are new spots. They may offer good food.
I agree with the recs for La Bonne Soupe and Benoit, which happen to be on the same block, 55th, b/t 5th & 6th.
I also like Marseille, which is on the corner of 9th & 44th.
Tout Va Bien does not "va too bien" pour moi.
We've not managed to get to Chez Napoleon, on 50th, b/t 8th & 9th, but Hounds who've been there say the classic bistro cuisine is very good.