Breakfast, lunch, and cupcake stops near Inter-Continental

[de5181]

My husband and I are going on a culinary adventure to Chicago next weekend. Most of our meals are set - Alinea for dinner, Frontera for brunch/lunch, and Graham Elliot for dinner. I still need a quick lunch spot near our hotel for the day we arrive. We'll be taking the rail into town (blue/pink). Is there a hot dog joint nearby? I figure we'll need something light in order to be ready for Alinea that night!

Then I've heard great things about the Bongo Room for breakfast but I fear that will be too much before a lunch at Frontera. Which Bongo Room location would be the closest and easiest for us to get to?

And lastly, what's the best cupcake place that's closeby. I know that's relative and I also know I will get 15 different answers as to which is the best.

Thanks in advance.