Just go on google maps and find the cheapest Indian or south Asian restaurant around you. There is bound to be some tiny little place where you can buy em. Very freezable too, reheat wel l on the pan and a toaster.

I like running em under the sink and frying em the next morning.

Edit: since south asians go across the world for low paid jobs, labourers, store workers, taxi drivers etc and often single men to send money back home to their families, wherever they go they form a community of sorts, prefer living together and have cheap restaurants for local food too. Very common in the middle east and the UK for example. In the US it happens in some pockets but not everywhere.