Ha, I love Taco Bell’s mild sauce & have many packets hidden in the veggie drawer. Making tacos tomorrow for supper.
I think my first introduction to hot sauce was in a frozen TV dinner - probably Swanson’s Mexican dinner, back in the 1970s. It would have enchilada and tamale in sauce in the main part; refried beans and rice in the small areas up top; and in the middle, this wonderful hot sauce. I had never tasted anything like that at the time - I was raised on pretty simple, down-home cooking. I suspect that the TB hot sauce is very like the sauce in that TV dinner was.
http://tvdinners.wikia.com/wiki/Swanson_Mexican_Style_TV_dinner