1 lemon, zest only
salt and freshly ground pepper
900g/2lb spinach
cornflour, for dusting
freshly grated nutmeg, to taste
1 tbsp olive oil
pinch salt
1 tbsp crushed sea salt
1 tbsp sesame seeds
200g/7oz strong white flour
70驳/2陆辞锄 butter, melted
1 large free-range egg, beaten
1 egg yolk, for glaze
200g/7oz feta