Heat the oven to 200C/fan 180C/gas 6. Put the salmon fillets skin-side down on a baking-paper-lined tray, season well and put into the oven for 12-15 minutes or until cooked through.
Meanwhile, cook the pasta following pack instructions until al dente, then drain, reserving some of the pasta water.
In a small bowl, mix together the parmesan, crème fraîche, lemon zest and juice, black pepper, three-quarters of the parsley and some seasoning.
Tip the pasta back into the pan with the sauce from the bowl and toss to combine, adding a splash of pasta water to create a sauce.
Divide between two bowls, flake over the salmon and top with the remaining parsley.
