Downtown Brooklyn lunch places...
There is no good Indian or Thai to speak of, at least not in Downtown Brooklyn. The walk down to Atlantic for Middle Eastern--Waterfalls, Yemen Cafe--is your best bet. There's also a Nicky's for Vietnamese banh mi just east of Smith on Atlantic. If you're ordering in, I think EmThai down on Smith is the best of the lot for Thai but I don't think they'd deliver all the way up to downtown.
re: gangly handful
ghang thai on smith is enjoyable, as is joya on court. you're right that they are not spectacular, but tasty standard inexpensive thai, to be sure.
also - amin the indian on montague is similar in my head -order from there when i have an indian craving, and it satisfied that need, but doesn't go terribly far beyond.