As I frequent the Opera more, Nota Bene has been my go to for pre-opera nosh. I don't eat at the main dining area, but the bar area, which is really nice (you can have your dinner there too).
Bar Bites are so yummy, especially the Sliders, Cod Fritters, grilled cheese, and the Suckling Pig (YUM!YUM!YUM!).
Yesterday, Nota Bene was having a Champagne special so in addition to the Perrier Jouet, they had the Veuve for $19(!!) and a Vintage of something and a Rose. If the special is still on, I would highly recommend trying the varieties. The Vintage was really yummy.
Service is always impeccable: water glasses continually filled and they make sure you are never without a glass of something else:)
Really love this place!