1. Lightly coat an unheated large saucepan with nonstick cooking spray. Preheat over medium-high heat. Add chicken; cook and stir for 3 minutes. Carefully add broth, leek or onion, ginger, and, if desired, saffron.
2. Bring to boiling. Add tortellini or ravioli. Return to boiling; reduce heat. Simmer, uncovered, for 5 to 9 minutes or until tortellini or ravioli is tender, stirring occasionally. Remove from heat. Top individual servings with spinach. Makes 4 servings.