Taco Bell has a sweet surprise for Nacho lovers all across the country. The California-based Mexican fast food restaurant chain has launched a digital exclusive deal that lets customers enjoy 7-layered Nacho Fries or a 7-layer Nacho Fries Burrito for $3. Available in stores starting December 15, the limited-time deal can only be claimed on app and website orders.Customers can place an order for the limited-time Nacho Fries and Burrito deal at their nearest restaurant or from their home for pick-up and deliveries. The offer can be claimed until December 21 at all participating locations, but prices may vary depending on the location.7-Layered Nacho Fries (Image via Taco Bell)The fast food chain has not specified any order limits on the $3 Nacho Fries or Burrito deal yet. Hence, customers can enjoy their fill almost everyday until December 21.Taco Bell's $3 7-Layer Nacho Fries or Burrito Deal features two new delicacies in under 700 caloriesLaunched last month on November 17, the 7-Layered Nacho Fries and Burrito will soon be leaving the chain's menu. Right after the launch, the new items became a fan favorite all across the country. Therefore, Taco Bell has decided to let customers enjoy their favorites for a bit longer at a new price of $3. Though the 7-Layered Nacho Fries and Burrito might probably return next year, the chain has not hinted at any such possibility.In case you haven't tried out the two new delicacies yet, here's a quick brief on what to expect from the new Taco Bell fan-favorites.7-Layer Nacho FriesTaco Bell's 7-Layer Nacho Fries features a bed of crunchy seasoned fries topped with seasoned beef, black beans, a generous amount of nacho cheese sauce, reduced fat sour cream, guacamole, creamy chipotle sauce, and tomatoes. The hearty and filling nachos fries are served with a topping of real shredded cheddar cheese and carry around 610 calories. View this post on Instagram Instagram Post7-Layer Nacho Fries BurritoInspired by the 7-Layerd Nacho Fries, the 7-Layer Nacho Fries Burrito comes with seasoned beef, black beans, and a generous amount of nacho cheese sauce. In addition to that, a scoop of reduced fat sour cream, guacamole, creamy chipotle sauce, tomatoes, and real shredded cheddar cheese are added and then wrapped up in a warm flour tortilla. The 7-Layer Nacho Fries Burrito is a one hell of a heart meal and carries around 640 calories. View this post on Instagram Instagram PostBoth items are available in veggie style for customers who don't eat meat. Although the veggie style 7-Layer Nacho Fries and Burrito doesn't include beef, Taco Bell hasn't added anything extra to make up for the removed meat.Customers can also go for a Fresco-style order, where all extra sauces are replaced with freshly diced tomatoes. The Fresco style works best for people who want to keep their calorie consumption in check.