Ingredients:

Dough:
-4 cups flour
-pinch of salt
-1 envelope active dry yeast
about 1 1/2 cups warm water

Filling:
-1 teaspoon olive oil
-1 red onion, thinly sliced
-3 medium zucchini, sliced
-2 large tomatoes, diced
-1 cup mozzarella cheese, diced
-1 tablespoon chopped fresh oregano
-skim milk, to glaze
-salt and black pepper

1. To make the dough, sift the flour and salt into a bowl and stir in the yeast
2. Stir in just enough warm water to mix to a soft dough
3. Knead for 5 minutes until smooth
4. Cover and leave in a warm place for about 1 hour, or until doubled in size
5. Meanwhile, to make the filling, heat the oil and saute the onion and zucchini for 3-4 minutes
6. Remove from the heat and add the tomatoes, cheese, oregano, and seasoning
7. Preheat the oven to 425 degrees F
8. Knead the dough lightly and divide into four pieces
9. Roll out each piece on a lightly floured surface to a 8 inch round, and place a quarter of the filling on one half
10. Brush the edges with milk and fold over to enclose the filling
11. Press firmly to enclose
12. Brush with milk
13. Bake on an oiled baking sheet for 15-20 minutes
14. Serve hot or cold