Put the pasta in a boiling salted water and let it cook for 10 to 12 minutes

Sweat the onions with olive oil

Add salt and pepper

After add the grated garlic

Then tomato paste and keep stirring until it mixes up then add hot pepper or chili

Pour the cream and let it reduce a little a bit then add the tuna

Take off from stove and add the grated parmesan cheese