a picture of tomatoes, until I can get something better
food pic
Well, you have to be able to do something with those half tins of tomato! Adding fresh tomato to canned helps give a nice fresh flavour.
Homemade Tomato Sauce
For two to three people you will need

1 small tomato
1 clove garlic
200g/7oz canned tomatoes
1/2 teaspoon olive oil
fresh herbs

Pour boiling water over the tomato and leave for a minute or two. Remove the tomato from the boiling water and pull off the skin. Chop the tomato coarsely. Crush the garlic.
Heat the oil in a good non-stick pan. Add the garlic, the undrained canned tomatoes and the fresh tomato. Bring to the boil, then turn the heat right down and simmer for about 7 minutes. Stir in chopped fresh herbs to taste, or a pinch of dried.