"Completo" is a popular Chilean street food that consists of a delicious hot dog nestled in a soft bun. It is traditionally topped with a variety of mouthwatering ingredients, including sauerkraut, diced tomatoes, mayonnaise, mustard, and sometimes avocado. The combination of flavors and textures creates a satisfying and flavorful experience that makes the "completo" a beloved choice for a quick and tasty meal.