Olive oil quantity - if you use a full 1/2 cup of olive oil the sauce will be extra flavorful and rich, but 1/3 of a cup works too if you'd rather reduce the calories and fat content of the dish. If you use 1/3 cup, you will want to splash in a bit more pasta cooking water when you mix the pasta in.
Calories: 812kcal, Carbohydrates: 85g, Protein: 30g, Fat: 40g, Saturated Fat: 11g, Polyunsaturated Fat: 4g, Monounsaturated Fat: 23g, Cholesterol: 42mg, Sodium: 362mg, Potassium: 946mg, Fiber: 8g, Sugar: 6g, Vitamin A: 1606IU, Vitamin C: 32mg, Calcium: 991mg, Iron: 5mg