Clean, wash and drain the spinach. Peel and finely chop the onion and garlic. Wash fish, dab dry and dice.
Heat 1 tablespoon of oil in a large pot, sauté onion and garlic in it, add spinach and let it collapse.
Wash the lemon hot, grate dry and grate the peel. 1⁄2 Squeeze the lemon. Add lemon peel to the spinach. Season with salt and pepper. 1⁄4 Add l water, cream and stock, bring to the boil. Stir in sauce thickener, bring to the boil again.
Season to taste with lemon juice, salt and pepper.
Meanwhile cook the pasta in plenty of boiling salted water for about 10 minutes. Drain the noodles.
Fry 5 salmon in 1-2 tablespoons of hot oil all around for 3-4 minutes. Season with salt and pepper. First add the noodles, then the salmon to the spinach. Serve the noodles.