Difficulty: Very easy.
For four people:
500 gr. of Penne rigate pasta (preferably an Italian brand)
300 gr. of Smoked salmon.
1 or 2 onions (It depends on the size, in this case two medium onions).
A pinch of salt.
A small olive oil spurt.
Some Parmigiano Reggiano or Grana Padano cheese.
Take the onions and chop them. Once the onions are chopped, put a small olive oil spurt and the chopped onions in a frying pan, and let it cook slowly. While the onions are cooking, in a pan, put some water and heat up until it boils. You should put enough water, that's the trick for making good pasta. Once the water is boiling put in a pinch of salt and immediately, the pasta. The pasta should be boiled in a few minutes. Don't boil the pasta too much, you'll ruin it, it should be "al dente", firm.
You have enough time to prepare the smoked salmon. You should only make small squares with it.
In ten or twelve minutes the onion should be ready and the pasta as well. Strain the pasta with a strainer and put it in the pan again. Take the frying pan and put the onion in the pan as well, finally put in the small squares of smoked salmon and stir all the ingredients.
In a plate grate some Parmigiano and when you serve the pasta, put some grated cheese on top of the pasta. The recipe is done. Only we should enjoy it.