This recipe prepares a vibrant linguine dish featuring perfectly grilled shrimp and a fresh, herbaceous arugula-parsley pesto. The whole-wheat pasta provides a hearty base, while toasted walnuts and Parmigiano-Reggiano add depth to the zesty pesto. It's a flavorful and relatively quick meal, ideal for a satisfying lunch or dinner.
For the pesto, ensure walnuts are properly toasted to deepen their flavor without burning. Blanching the garlic cloves briefly before adding to the food processor can mellow their intensity, making the pesto more balanced. When grilling shrimp, avoid overcooking, as they can quickly become tough; look for a vibrant pink color and opaque flesh. Always cook the linguine al dente, and reserve some pasta water to emulsify the pesto with the pasta, creating a silky sauce that clings beautifully. A final drizzle of high-quality extra-virgin olive oil before serving will enhance the dish's aroma and richness.