If you love the Zuppa Toscana at your local chain Italian restaurant, you will adore this soup. The rich soup is made with Italian sausage, potatoes, cream, and crushed red pepper. It is truly satisfying and irresistible. Tuck into this on a cold day and you are sure to be warmed all the way down to your toes.
Cook the Italian sausage and red pepper flakes in a Dutch oven over medium-high heat until crumbly, browned, and no longer pink, 10 to 15 minutes. Drain and set aside.
Heat 2 tablespoons olive oil in dutch oven. Stir in the onions and garlic; cook until onions are soft and translucent, about 5 minutes.
Pour the chicken broth into the Dutch oven with the onion/garlic mixture; bring to a boil over high heat. Add the potatoes, and boil until fork tender, about 20 minutes. Reduce the heat to medium and stir in the heavy cream and the cooked sausage; heat through. Mix the kale into the soup just before serving.