There are a number of recipes out there that try to duplicate Olive Garden's "Zuppa Toscana" appetizer soup but they usually call for artificial ingredients or seriously lack in flavor. With or without the addition of chopped kale leaves this all-natural and economical family dish is chock full of traditional flavors and is nearly identical to Olive Garden's signature dish. Hint: To reduce the fat content of this soup make sure to remove the kale leaves before serving; they absorb grease.