Cook the spaghetti al dente. Blanch the spinach in salted water for 5 minutes. Finely chop the spring onions and simmer in the stock. Chop the sliced meat and add. Mix in the spinach (drained) as well. Add the creme légère, salt, pepper and soy sauce, season well. Drain the spaghetti and fold in. Serve with grated sbrinz or parmesan.