Speaking of Tacky Bell and such, like I said, I have no shame when it comes to food confessions:
One Mexican fast food item I had in the early 1970s, because a workmate picked up some stuff from there, was a cheese quesadilla at a California chain called Del Taco. That was my first ever quesadilla, and it was a simple little thing, I think just the cheese and the flour (I think) tortilla. I dunno, there might have been some other ingredient in there, but that was the most wonderful discovery... the miracle of melted cheese in a hot tortilla. From that moment on, quesadillas -- whether they be plain or fancy -- have been one of my very favorite foodstuffs.
Oh, you know another one that was a revelation? I remember now, the Del Taco one was indeed in a flour tortilla, because the first corn tortilla quesadillas I had were at that incredible Mexican jernt Oblath's (sp?), the studio hangout across from the Paramount gate. Anyway, quesadillas and I have been "like this" since those days.
Oh --- that Del Taco was at Hollywood and Western, a dicey neighborhood at the time, but there weren't many Del Tacos around. And that one's still there.