Heat the oil in a large frying pan. Sauté the onion, garlic, chilli pepper and 4 tbsp of parsley for approx. 3 mins. Add the squid rings and peas, cook for a further 5 mins. Pour in the wine and reduce almost completely. Mix in the passata, season and simmer for approx. 15 mins. Sprinkle with the remainder of the parsley before serving.