Which Kosher restaurants in Manhattan are open after Pesach?
Which Manhattan restaurants (dairy or fleischig) will be open chol hamoed?
After Pesach, or on chol hamoed? Different questions.
Koshertopia has a list of NYC and Teaneck restaurants/takeout places open on Pesach in a PDF here: http://www.koshertopia.com/Pesach2010...
From the list, it appears that in Manhattan, Abigails, Cafe Mocias, Darna, Le Marais, My Most Favorite Food, Prime Grill, and Talia's will be open on chol hamoed.