1.
Heat olive oil in a large saucepan over medium heat. Cook shallots and garlic in oil until soft. Stir in chopped tomatoes, tomato purée and the mussels. Season with basil and oregano. Cover, and simmer for 10 minutes.
2.
Stir in fresh tomatoes. Cover, and simmer 5 minutes. Discard any mussels that have not opened their shells. Using a slotted spoon, place mussels in bowls and pour sauce over the top. Serve with crusty bread to mop up the delectable juices.