Stir in pasta; cook for 5 to 6 minutes. Reduce heat to low; stir in zucchini and tomato. Cook until vegetables are heated through.
Sprinkle with cheese before serving. Season with ground black pepper.
Tortellini is a warming, homey dish just right for cold, blustery days. Simmered with bits of zucchini and chunks of tomato, this zesty and filling dish is dressed with grated Parmesan. Serve with fresh focaccia bread and Perrier water.