Originally Posted by LapLap

http://www.timeout.jp/en/tokyo/venue...bukiza-Theatre
No problem, since you are going to Ginza anyway, drop by and see if they have any tickets for just one Act.


Best rid yourself of that assumption immediately. If you're happy to eat lunch rather than dinner, aren't too picky about your options and are willing to forsake wine or beer with your meal in favour of the complimentary water and tea, you'll be amazed at what your wallet will support.
Off the top of my head, first that comes to mind is the Michelin starred Nakajima in Shinjuku. When I was there it was 800yen for lunch. The boiled sardines with umeboshi were sensational (the fried sardines were good, but not nearly as memorable). I barely got to try them, my then two and a half year old wolfed them down.