Yes, this is what you think it is: a taco made from a big Doritos corn chip. Each one is 200 calories, 100 of which come from fat, 60 from carbohydrate and 36 from protein. Taco Bell: bringing us the best of traditional Mexican cuisine since 1946.
Doritos are a highly engineered, hyperpalatable processed food. Everything from the fat content, the crunch, the size of the salt particles, the color, to the balance of natural and artificial flavorings, is carefully engineered and tested on focus groups to maximize "craveability". If you doubt that, have a look at the ingredient list for the Nacho Cheese flavor:
Whole corn, vegetable oil (corn, soybean, and/or sunflower oil), salt, cheddar cheese (milk, cheese cultures, salt, enzymes), maltodextrin, whey, monosodium glutamate, buttermilk solids, romano cheese (part skim cow's milk, cheese cultures, salt, enzymes), whey protein concentrate, onion powder, partially hydrogenated soybean and cottonseed oil, corn flour, disodium phosphate, lactose, natural and artificial flavor, dextrose, tomato powder, spices, lactic acid, artificial color (including Yellow 6, Yellow 5, Red 40), citric acid, sugar, garlic powder, red and green bell pepper powder, sodium caseinate, disodium inosinate, disodium guanylate, nonfat milk solids, whey protein isolate, corn syrup solidsHey, it's made from whole corn and contains "heart-healthy" vegetable oil and even vegetables! It's also gluten free. It's hard to imagine a healthier snack.