Taco Bell's "Cantina" restaurants very much remind me of their "Border Grill" (or was it "Border Bell"?) experiment in the late 90s. They tried to latch on to the emerging trend of fast-casual restaurants. I'm not sure what Taco Bell considered its results to be, but from the outside it sure looked like a failure as the restaurant near me never seemed to have any business and was converted to a regular Taco Bell within a year or two.