Drizzle the salmon with lemon, season with salt, pepper and leave to stand for half an hour. Then fry all over with olive oil. Arrange on lettuce leaves and keep warm. Cooking pasta.
Sauté the onion rings and garlic in the same pan, then add the shrimp and rocket (shortened to bite-size) and season everything well with herbs, salt and pepper. Finally add the cream, bring to the boil and fold in the pasta. Possibly Season and sprinkle with fresh parmesan.