I'll be visiting a dear friend in Boston area in Mid-May. For her graduation and good-bye, since she'll be returning to her motherland in Asia. It may be a few years before we have a chance to see each other again. Please suugest a good place where I may treat her to a nice meal, dinner or lunch. We both are world travelers and very adventurous when it comes to eatting, so any curisine would be fine. Price wise, I'm hoping no more than $50/person (excluding drinks). Please advise. Thank you!