Cook the pasta according to package directions. Drain.
Meanwhile, in a large skillet cook onion, carrot, and garlic in hot oil for 5 minutes or until tender. Add tomatoes, zucchini, fennel seed, and crushed red pepper. Bring to boiling; reduce heat. Simmer, uncovered, for 3 minutes. Stir in pasta. Heat through. Makes 4 side-dish servings.