Method
1. Pre-heat oven to 200°C; 400°F: Gas 6
2. Chop the tomatoes, mushrooms and onion and mix with the sausage meat and herbs.
3. Roll out the pastry on a floured surface into a rectangle 12 inches by 9 inches and place on a greased backing tray.
4. Arrange the filling along the centre of the pastry.
Cut the pastry into 1/2 inch strips at an angle, either side of the filling.
5. Fold the pastry strips, alternately, over the mixture to look like a plait.
6. Brush with beaten egg and bake for 30-35 minutes.
