I'm looking for some suggestions of restaurants in Brooklyn that are open for lunch during the week (specifically on Tuesdays). My mom, a chef from out of town, visits on Tuesdays, and would love to check out some interesting places. She works nights, obviously, so she rarely gets a chance to check out the more interesting restaurants, which tend to be open nights or weekend days. We're very open to good ethnic cuisine, as that is usually easier to find open for lunch, but would also really love some more upscale options as well. I live in Prospect Heights, but we are very willing to travel.