method
1. Peel and quarter the tomatoes, and remove the seeds, reserving the juices. Wipe the zucchinis and cut them into 1/4 inch slices.
2. Slice the onions and mushrooms. Slice the pepper thinly.
3. Heat the oil in a large saucepan and fry the zucchinis and onions, stirring, until golden.
4. Add half the tomatoes and their juices, the mushrooms, green pepper, mint and salt and pepper to taste.
5. Cover and simmer gently for 15 minutes.
6. Stir in the remaining tomatoes and reheat gently for about 5 minutes.
7. Serve hot or cold, with Parmesan cheese.
