Pour in the tomato sauce and cook for a few minutes. Drain the canned tuna and add it to the sauce. Cook for an additional minute.
Add the whipping cream and cook all together on high heat until the sauce is very hot but not bubbling.
Add the cooked penne or your favorite pasta and finish cooking directly in the sauce for an additional minute.
Sprinkle the dish with parsley and drizzle with the best extra-virgin olive oil available. Serve immediately.