After the Double Decker, they started coming out with things like the Crunchwrap Supreme, the Chalupa, the Gordita, etc. Things that are either completely Taco Bell or so very far from their original origins that they are still like de facto Taco Bell.
When I first saw an ad for the Double Decker Taco, I thought it was a pretty lame idea. "Look, we took a Crunchy Taco and put it in a Soft Taco and glued it together with beans!" But, curiosity got the better of me and you know? It works.
Okay, so it's not exactly a Crunchy Taco inside a Soft Taco (though I wouldn't be surprised if that was Taco Bell's next menu item), it's a Crunchy Taco wrapped in a flour tortilla with refried beans between the two holding them together; the "cheese" in pizza lingo. The beans are the cheese! Haha... that's what late-night posting gets you.
The Double Decker Taco is also currently available as a $2 Meal Deal with a small bag of Doritos chips and a soft drink.
Nutritional Info - Taco Bell Double Decker Taco (156g)
Calories - 330 (from Fat - 120)
Fat - 13g (Saturated Fat - 5g)
Sodium - 820mg
Carbs - 38g (Sugar - 2g)
Protein - 14g