01 - Bring a large pot of salted water to a boil. Cook the pasta according to package instructions until al dente. Reserve 1/2 cup of the pasta cooking water, then drain the pasta.
02 - While the pasta cooks, make the pesto: In a food processor, combine peas, mint, pine nuts, Parmesan, garlic, lemon zest, and juice. Pulse until roughly blended.
03 - With the processor running, slowly drizzle in the olive oil until the pesto is creamy but still a bit textured. Season with salt and pepper to taste.
04 - In a large bowl, toss the hot drained pasta with the pesto, adding reserved pasta water a little at a time until the sauce lightly coats the pasta.
05 - Serve immediately, garnished with extra Parmesan, mint leaves, and pepper.