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. Reserve ½ cup of the starchy pasta water before draining in a colander.
02 - While the pasta cooks, add the wild garlic leaves, toasted pine nuts, Parmesan cheese, and garlic clove to the bowl of a food processor. Pulse several times until the ingredients are roughly chopped and combined.
03 - With the processor running continuously, slowly drizzle in the extra virgin olive oil through the feed tube until a smooth, vibrant green paste forms. Add the lemon juice and season with salt and black pepper to taste. Blend briefly to incorporate.
04 - Transfer the drained pasta to a large serving bowl or back into the pot. Add the wild garlic pesto and toss thoroughly to coat every strand or piece. Splash in reserved pasta water a little at a time until the sauce reaches a silky, clinging consistency.
05 - Divide among warm plates or bowls immediately. Finish with an extra shower of grated Parmesan and a generous crack of black pepper, if desired. Serve right away while the flavors are at their brightest.