Cook spaghetti according to package directions. Place sausage, vegetables and water in 10" skillet. Bring to a boil. Reduce heat, cover and simmer 7-8 minutes or until vegetables are crisp-tender. Add milk, margarine and Italian seasoning to skillet. Heat to melt margarine. Toss sausage mixture with spaghetti and Parmesan cheese. Let stand 5 minutes to thicken.