This Penne with Spinach in Low Calorie White Sauce is a healthy and delicious pasta dish. The penne pasta is cooked al dente and then tossed with fresh spinach leaves. The low calorie white sauce is made with skim milk, garlic, and a touch of Parmesan cheese. The sauce is creamy and flavorful, without the added calories. This dish is perfect for a quick and easy weeknight dinner, and it's a great way to incorporate more greens into your diet.