For an extra layer of flavor, try adding a sprinkle of grated Parmesan cheese or a handful of toasted pine nuts. If you prefer a creamier dressing, whisk in a tablespoon of ricotta cheese or Greek yogurt. The pasta can be cooked ahead of time and stored in the refrigerator. Just be sure to add the arugula right before serving to prevent it from wilting. Adjust the amount of lemon juice and garlic to your taste preference.