1 (6 1/2 oz.) can tuna
1 lg. can tomato sauce
1 sm. can tomato paste
1 med. onion, chopped
1/2 c. water
3 to 4 tbsp. olive oil
1/4 tsp. pepper

Heat the oil slowly in saucepan; add the onions. Stir for a minute, then add the garlic and tuna fish. Stir for a minute or two. Add the tomato sauce, tomato paste and water; season with pepper. Blend well, then cover and cook for one hour. Stir often. Serve with cooked spaghetti.