Olive oil quantity - this will vary depending on how heavy handed you are. I tend not to measure the oil, and just add as much as I want to stop it feeling dry, but no more. The nutritional information is based on using 1/3rd of a cup of olive oil (80ml). You could easily use less, but you may wish to add some pasta cooking water to the final dish to stop it being too dry.
Calories: 638kcal, Carbohydrates: 56g, Protein: 25g, Fat: 35g, Saturated Fat: 12g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 18g, Cholesterol: 55mg, Sodium: 383mg, Potassium: 458mg, Fiber: 4g, Sugar: 4g, Vitamin A: 981IU, Vitamin C: 68mg, Calcium: 558mg, Iron: 2mg