And the Green Sauce ... Today, Taco Bell's menu features favorites such as soft and crunchy tacos, the cheesy bean and rice burrito, the beefy five-layer burrito and the chicken quesadilla.

If there's one thing you'd expect Taco Bell to do, it's turn out a serviceable Mexican-American standard like a quesadilla. Messing up a quesadilla at Taco Bell should be a cardinal sin ...