Depends what type of food you are in the mood for. There's Gibson's for steaks, expensive steaks. There's that Vietnamese restaurant right next to Barney's. There's that sushi place right across the street from Barnes & Noble.
I like that French bistro Le Zinc, also right across the street from Barnes and Noble.
That Italian place right across the street from Gibson's seems quite popular.
Whatever you do make a reservation for Saturday night.