I have made this from scratch for years and my kids used to love it and I still make it just for myself. I use two cups or more of home canned tomatoes.
Bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain.
In a large saucepan combine cooked macaroni, milk, margarine and salt and pepper. Then stir in tomatoes. Cook over medium heat until quite hot.
Per Serving: 230 calories; protein 8.6g; carbohydrates 25.8g; fat 9.7g; cholesterol 11.7mg; sodium 262.5mg.