Spinach and feta filo pie

Preparation time: 30 mins to 1 hour
Cooking time: 30 mins to 1 hour
Serves 8

Ingredients
- 2-3 tbsp vegetable oil
- 2 onions , sliced
- 600g/1lb 4oz good quality feta cheese,chopped
- 450g/1lb baby spinach leaves
- 100g/3½oz pistachios , shells removed
- salt and freshly groundblack pepper
- 150g/5½oz unsalted butter , melted
- 20 sheets filo pastry

To serve
- lightly dressedgreen salad
- Greek-style yoghurt
- 1 tbsp sesame seeds

Method
1. Preheat the ovento 160C/300F/Gas 2.
2. Heat the oil in a frying pan over a low to mediumheat. Add the onions and fry gently for 15-20 minutes,or untillightly browned.
3. In a bowl, mix togetherthe browned onions, feta, spinach and pistachios until well combined.Season, to taste, with salt and freshly groundblack pepper.
4. Grease a 36cm x 24cm/15inx 10in ovenproofdish with some of the melted butter. Lay a sheet of filo pastry in the bottomof the dish and brushall over with meltedbutter. Repeat the layeringand greasing processwith a furtherfour sheetsof filo pastry, leaving the toplayer of pastry unbuttered.
5. Spreadonethirdof the onion, feta and spinachmixtureon topof the pastry sheetsin an even layer.
6. Add five more pastry sheetsto the dish in layers, greasing in betweeneachlayer with meltedbutter. Spreadover another thirdof the onion, feta and spinachmixture.
7. Repeat the processwith another five pastry layers and the remainingonion, feta and spinachmixture.Finish with the remainingfive sheetsof filo pastry. Brush the toplayer of pastry with the remainingmeltedbutter.
8. Using a sharpknife,cut a criss-crosspatterninto the top layer of pastry. Transferto the ovenand bakefor 30-40 minutes,or untilthe pastry layers are crisp and pale golden-brown and the feta cheesehas melted.
9. To serve, spoona portion of spinach and feta baklava into the centreof eachof eight servingplates. Spoonthe green salad and Greek-style yoghurt alongsideand sprinkle over a few sesameseeds.