How to Make It
Heat oil in a Dutch oven over medium. Add onion, celery, carrot, and garlic, and cook, stirring often, until onion is tender and celery and carrot are almost tender, about 8 minutes. Add turnip greens, in 2 batches, stirring until wilted after each addition. Stir in broth, beans, and tomatoes, and bring to a boil over medium-high. Add tortellini, and cook until pasta is tender, about 4 minutes. Top with Parmesan.