Lesser known food options

Food question. I was driving back from a work thing and Google took me down some sketchier roads. But on those roads there were a few takeout places, quick marts, and other businesses. I decided to look up the reviews on one restaurant expecting it to be kind of low, but it got good reviews. And it got me thinking, what are some of those hidden gems that are overlooked because they are in some sketchier areas but still safe enough to visit and get a good meal?

Back I nthe day there was a really good restaurant that wasn't in the best place, but man was the food good. It has since burned down though.