Which item includes a layer of Nacho Cheese Sauce as a primary ingredient?

The Crunchwrap Supreme is known for its unique construction, which includes layers of various ingredients, one of which is a prominent layer of Nacho Cheese Sauce. This sauce adds a creamy, cheesy flavor that complements the other ingredients like seasoned beef, lettuce, tomatoes, and a crispy tostada shell, making it a signature component of the Crunchwrap. The presence of Nacho Cheese Sauce is essential to this item, enhancing its taste and overall appeal, which is why it is identified as a primary ingredient in this popular Taco Bell offering.

In contrast, while the other options might contain cheese or similar flavors, they do not feature Nacho Cheese Sauce as prominently as the Crunchwrap Supreme does.