Pour oil and garlic cloves in pan. Heat.
Add all tomato cans to oil. Add 1 can of water for puree and paste.
Add parsley, basil, salt, and pepper.
Add Romano cheese.
Cook for at least 2.5 hours.
Drain tuna, then add to sauce.
Cook for at least another 0.5 hours.
(Optionally) remove garlic cloves before serving
