4: Meanwhile, in a frying pan over medium heat, pour in 2 tablespoons olive oil, and when hot, add the diced smoked fish. Cook for 1 minute, stirring constantly.
5: Add the cheese and stir to melt for 1 minute.
6: Add the cooked pasta.
7: Stir well to combine, then add a small ladleful of pasta cooking water to loosen the mixture.
8: Finish with a little chopped parsley, mix one last time, check the seasoning and you're ready to go.
Remarks
Of course, you can use the pasta of your choice instead of butterflies.