1. Bring first 3 ingredients to a simmer in a medium saucepan. Add tortellini, and cook the amount of time given by the package directions; do not drain. 2. Remove from heat; stir in arugula. Let stand 1 minute or until arugula wilts. 3. Ladle 1 cup broth-tortellini mixture into each of 4 bowls. Top each with 1/4 cup tomato and 1 teaspoon Parmesan cheese. 4. Brodo (BROH-doh) is the Italian word for broth.
