Cook pasta according to package directions. Add zucchini or yellow summer squash, pea pods, and yellow or red sweet pepper to pasta in boiling water for last 3 minutes of cooking. Vegetables should be crisp-tender. Drain.
In a medium saucepan heat the tomatoes, green onion, and basil or dill in hot oil for 2 to 3 minutes or until heated through, stirring gently.
Toss the pasta mixture with the tomato mixture. Transfer to a warm serving platter. Sprinkle with Parmesan cheese and pepper. Makes 4 side-dish servings.