Each Double Taco comes filled with a fried chicken tender, guacamole, shredded cheese, tomatoes, and onion in a crunchy taco shell that is stuck to a soft flour tortilla by a layer of salsa (the Double Decker uses a layer of refried beans for the same effect).
It should be noted that there are no Taco Bell restaurants in France at the time of this writing (Taco Bell and KFC both fall under the Yum Brands umbrella).
While tacos probably won't ever find themselves on the KFC menu here in the US, I could see Taco Bell doing something similar if they bring back Naked Chicken Chips for another go-round.
Photo via KFC.