Defrost peas at room temperature. Clean and wash the calamari and cut the tubes into rings. Wash parsley, shake dry. Pluck the leaves from the stems and chop them, except for a little bit for garnishing.
Wash lemon hot, grate dry, halve and slice. Prepare pasta in boiling salted water according to package instructions. Heat the oil, fry the parsley leaves briefly, remove and drain on kitchen paper.
Fry the calamari in hot oil for about 5 minutes. After 2 minutes add lemon slices, peas and pine nuts. Finally stir in chopped parsley. Season to taste with salt, pepper and lemon juice.
In the meantime, pour the pasta into a sieve, collecting 100 ml of pasta water. Pour the noodles and pasta water into the pan and fold in. Arrange on plates and garnish with fried parsley.