Fry the onion in olive oil, add the chopped into small pieces salmon, stir about 1 minute and add the cleaned shrimp, also for about a minute. Pour the cream and leave to boil a few minutes until thickened, add the grated Parmesan and sprinkle with parsley. During this time we cooked the ribbons on the instruction of the package, wring them and add to the prepared sauce and mix.