Using a food processor can greatly simplify the preparation process for Chanko Nabe, a sumo wrestler's hot pot dish. The food processor can be used to finely mince the meat, saving time and effort. It can also be used to quickly slice the vegetables, ensuring that they are evenly cut and cooked. Additionally, a food processor can be used to make the broth by blending together the chicken or vegetable broth, soy sauce, mirin, and sake. This helps to create a flavorful and well-balanced broth for the hot pot. Overall, using a food processor can make the preparation of Chanko Nabe more efficient and convenient, allowing you to enjoy this delicious and nutritious dish with ease.