PREPARE: Heat oven to 200°C / 400°F / Gas 6. Line tray with baking paper. Melt butter and olive oil together in small saucepan.
MAKE FILLING: Stir together all cheese filling ingredients until well combined. The mixture won’t be perfectly smooth so leave it a little lumpy.
BUTTER FILO: Lay 1 piece of filo on work top, brush all over with butter and olive oil mixture, place another piece on top and repeat.
ROLL PASTRY: Along one long side make a long row of cheese filling. Roll up to form a long tube, then roll into a spiral. Place on prepared baking tray, pat with wet hands, and sprinkle over sesame seeds. Repeat 3 more times with remaining pastry.
BAKE: Drizzle over remaining butter and olive oil mixture, then bake in preheated oven for 40-45 minutes until golden brown and flaky. Allow to cool slightly before serving warm or room temperature.
OPTIONAL: For an extra treat, drizzle over a little honey before serving.