How to Make It
Cook pasta according to package directions, being careful not to overcook. Scoop out 1/2 cup pasta water; set aside. Drain pasta; place in a bowl.
Combine 1 cup peas, oil, nuts, mint, lemon zest and juice, salt, pepper, and garlic in a mini food processor. Grate 1 ounce cheese, and add to pea mixture. Pulse until finely chopped. With food processor running, slowly add 1/4 cup reserved pasta water; process until smooth, adding additional water as needed.
Add pesto and remaining 1/2 cup peas to pasta in bowl; toss gently to combine. Shave remaining 1 ounce cheese; sprinkle over pasta mixture.