What makes the item so unique -- and what keeps loyal Taco Bell fans coming back -- is the tostada shell on the inside ...

The Big Cheez-It Tostada and Big Cheez-It Crunchwrap were given a test run at a single Taco Bell in Irvine, California, and the demand was so high, that it wasn't even able to make its full two ...

Top with 1 tostada, 2 tablespoons of the sour cream, ¼ cup of the lettuce, 2 tablespoons of the tomatoes, another ¼ cup of the shredded cheese and finally with one of the cut tortilla quarters.

Cooks just have to add protein to the "cravings kits," which include Taco Bell tortillas ... flour tortillas, four crunchy tostada shells, Velveeta cheese sauce and taco seasoning.