Swiss Chard and Spinach Pie

FOR PASTRY: Stir the flour onto your work surface. Make a well in the center, and add the oil, about 4 tablespoons water and the salt. Work the dough quickly until it forms a ball. Refrigerate for 2 hours. FOR FILLING: Preheat the oven to 400 degrees F. Remove the dough from the refrigerator. Combine the Swiss chard, spinach, onion, leek and herbs in the bowl of a food processor. Run it for 30 seconds - the herbs should not be too finely chopped. Add the ricotta, eggs, parmesan and salt and pepper and process for 10 seconds. Divide the dough into 2 balls and roll them out separately. Butter a nonstick 9 1/2 inch pie pan and line it with half the dough. Pour in the herb mixture. Top with the remaining dough and crimp the edges to seal in the filling. Using a pastry brush, coat the whole surface of the pie with olive oil. Bake the pie in the preheated oven for 40 minutes. Transfer to a serving dish and serve hot or warm.