To make this Creamy Ravioli Soup gluten free, use certified gluten-free ravioli in place of regular cheese ravioli. Verify that the Italian sausage or ground turkey, chicken broth, crushed tomatoes, tomato paste, Parmesan cheese, heavy cream, butter, and dried herbs are labeled gluten free. Use clean cookware, utensils, and serving bowls to prevent cross-contact with gluten-containing foods. If gluten-free ravioli requires a different cooking time, follow the package directions and adjust the simmering time as needed.