Gee, ethnic huh? That means from ANYWHERE, right?
Well, Japanese (miso shiro, rice, natto, an egg, pickles, seaweed), and if I'm interested in saving a bit of money, Japanese at Matsuya does the trick. Or, if I'm running low on patience that day, Yamazaki crustless sandwiches. There is a grip of varieties, including sugar and margarine...of which I regularly steer clear.
Turkish, thanks for reminding me of it. One hotel in Pamukkale served me a generous assortment of jams, dips, meats, cheeses, and breads, with cay, of course.
But, my staple when in the states is a bowl of cereal drowned in milk. Admittedly, anything I'd eat at lunch or dinner I'd also eat at breakfast-anytime is fine for me.