01 - Bring a large pot of salted water to a boil. Cook pasta until al dente according to package directions. Reserve 1 cup of pasta cooking water before draining.
02 - Heat a dry skillet over medium heat. Add pine nuts and toast, stirring constantly until golden and fragrant, approximately 2–3 minutes. Remove from heat and set aside.
03 - Place peas, mint, basil, toasted pine nuts, Parmesan, garlic, and salt in a food processor. Pulse until ingredients are finely chopped and well combined.
04 - With food processor running, slowly pour in olive oil and lemon juice. Process until completely smooth, stopping to scrape down sides as needed. If consistency is too thick, incorporate 1–2 tablespoons reserved pasta water.
05 - Return drained pasta to the cooking pot. Add prepared pesto and toss thoroughly to coat. Add reserved pasta water gradually, a few tablespoons at a time, until sauce evenly clings to pasta.
06 - Serve immediately. Top with additional toasted pine nuts, freshly ground black pepper, and extra Parmesan cheese. Scatter reserved peas over the dish as a finishing touch.