We are big fans of frozen peas because they’re often better than fresh–and they take no time to cook. Thaw them right before you need them so they don’t get wrinkly.
Bring a large pot of water with 1 tbsp. salt to a boil. Add pasta and boil until tender, 7 to 9 minutes.
Meanwhile, whirl garlic and parsley in a food processor until finely chopped. Add 1 1/2 cups peas, the ricotta, lemon juice and zest, 4 tbsp. oil, remaining 2 tsp. salt, and the pepper. Pulse to a coarse purée.
Reserve 1 cup pasta cooking water. Drain pasta and return to pot. Immediately add ricotta-pea purée and remaining 1 cup peas and stir until well mixed. Add a little pasta cooking water, if necessary, to loosen sauce.
Divide among 4 bowls. Sprinkle each with pine nuts and parmigiano, and drizzle with remaining 1 tbsp. oil.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.