Cook the pasta following pack instructions, then drain and toss in 1 tbsp of the oil. Transfer to a large bowl and set aside to cool, tossing occasionally so it doesn’t stick.

Toast the pine nuts in a dry frying pan over a low heat, constantly moving them for 4-5 mins until browned. When the pasta has completely cooled, toss through the pesto, toasted pine nuts, remaining olive oil, basil, lemon zest and juice, and the tomatoes, sweetcorn, peas and rocket, if using. Season, then scatter over the parmesan and serve.