Cook pasta as per packet instructions. Add peas in last 2 minutes of cooking. Drain, remembering to reserve 1 cup of the cooking water for later.
Heat the butter in a large frying pan over low-medium heat. Add the garlic, chilli and lemon zest. Cook, stirring for 2 minutes or until garlic is golden.
Add the prawns and cook on one side for a couple minutes, then gently turn and cook for another minute or until the prawns are tender.
Add the pasta, peas, parsley and reserved water.
Season with sea salt and lots of freshly cracked black pepper and toss to combine.
Serve with a squeeze of lemon juice and a good lug of extra virgin olive oil and maybe even an extra teaspoon of butter stirred through each serving and extra black pepper!