I am a former NYer but haven't been to the city in nearly 4 years. I will be in this weekend for one night to take a class at ICE on 23rd St. (5-6th). I am staying near Union Square Sat. night and will be walking to the class Sunday morning. Any ideas for breakfast along the way? Also, are there any great suggestions for a quick lunch right around 23rd St. Thanks for your help - I can't wait!