my Google-fu is failing me (!), so i’ll list some references here & come back to it later.
i occasionally stumble upon Diners, Drive-Ins & Dives marathons when i visit my parents & watch TV at their place. i recall, in one episode, Fieri was visiting a diner (?) which was located along a main road, in the middle of nowhere, which served some kind of amazing coffee chili? i thought i had made a note of at least the name of the place, or the city, but i can’t find it. so i’ve been browsing the internets in the hopes of finding said place!
this is a labor of love made by fans of the show, with lists by city, state, cuisines and food types, as well as per season/episode.
the official show’s website http://www.foodnetwork.ca/shows/diners-drive-ins-and-dives/
and then this one, showing food locations that have been on TV on a map http://www.tvfoodmaps.com/show/Diners-Drive-Ins-Dives/all
i did step over my researcher pride and sent an email to TV Food Maps about it. hopefully they can help me out!