Happened to have been in LV back in February (for a Music Librarian's convention - whoo hah!) and stayed at the Riviera. I can't recall the restaurant's names, but within two blocks heading towards the glitzier part of the Strip, there was a good Korean place (in the same block of stores as a cigar maker and liquor store, if that's any help at all) and a bit down the road, heading towards the Hilton from there, I found an Ethiopian place in another shopping center type of place, next to an African goods store that appeared to be under the same management. Sorry to be so vague, but they are definitely places that don't shy away from spicing it up the way you request it and well worth searching out. Moderately priced too, to boot. Good luck and let us know if you get to either place, Peter Hirsch