Debra'S Quick Pasta Casserole(Low-Fat)  
["1 (16 oz.) jar Healthy Choice herb and garlic pasta sauce (hold 1/2 c. for topping casserole)", "2 c. penna pasta shells, cooked", "6 medium yellow squash", "1 large red bell pepper", "2 large zucchini", "1 large onion", "1/2 c. low-fat Parmesan cheese (hold 3 Tbsp. for topping casserole)", "1 tsp. cooking oil", "1/4 c. water"]
["Cook pasta per directions on box.", "Wash and chop all the vegetables.", "In large skillet, cook squash, zucchini, bell pepper and onion in cooking oil and water until tender.", "Mix half of sauce into vegetables; bring to boil."]
["garlic pasta sauce", "penna pasta shells", "yellow squash", "red bell pepper", "zucchini", "onion", "low-fat Parmesan cheese", "cooking oil", "water"]