breakfast and lunch in Rockville?
A few more breakfast ideas for you:
Ambrosia in the Montrose Crossing center behind Old Navy, has typical breakfast fare.
For something a little different, there is Marie's on Halpine next to Congressional Shopping center for sweet and savory Chinese pastries.
Also consider El Patio on Twinbrook just off 355 -- they have all sorts of quiches and empanadas and also have hot and cold sandwiches at lunch (I don't think they open until 9 a.m.).
I'd also add Urban BBQ, Lebanese Taverna, A&J and Crisp & Juicy to your ideas for lunches.