What item is famous for its layer of nacho cheese and crispy tortilla chips?

The item that is renowned for its layer of nacho cheese and crispy tortilla chips is the Nacho Bell Grande. This iconic menu offering from Taco Bell features a base of crispy tortilla chips topped with warm nacho cheese sauce, seasoned ground beef, refried beans, diced tomatoes, and sour cream. The combination of the crunchy chips and gooey cheese is what makes this dish particularly beloved among customers, standing out as a quintessential example of Taco Bell's innovative approach to fast food.

While the Beefy Nacho Griller does include nacho cheese and is a popular item, it is a wrapped burrito rather than a dish layered with chips. Cheesy Fiesta Potatoes focus on seasoned crispy potatoes and cheese but do not involve tortilla chips in their presentation. The Crunchy Taco, while a staple taco offering, does not feature nacho cheese or the layered chip experience central to the Nacho Bell Grande.