01 - Bring a large pot of generously salted water to a rolling boil. Add the pasta and cook according to package directions until al dente. Before draining, reserve 4 fl oz of the starchy pasta water. Drain thoroughly.
02 - While the pasta cooks, combine the wild garlic leaves, toasted pine nuts, grated Parmesan, and garlic clove in a food processor. Pulse several times until the ingredients are coarsely chopped and well combined.
03 - With the processor running continuously, slowly drizzle in the extra virgin olive oil through the feed tube. Continue blending until a smooth, vibrant green paste forms. Add the lemon juice and season with salt and black pepper to taste.
04 - Transfer the drained pasta to a large serving bowl or return it to the pot. Add the wild garlic pesto and toss vigorously, adding splashes of the reserved pasta water as needed to achieve a silky, evenly coated consistency.
05 - Divide among warmed plates or bowls. Finish with additional grated Parmesan and freshly cracked black pepper if desired. Serve immediately while hot.