Spinach, Herb and Cheese Pie

Grease a 20cm springform cake tin and fully line with baking paper.

Preheat the oven to 180°C.

Filling: Bring a large saucepan of water to the boil. Add the chopped spinach and cook for 3 minutes. Drain, run under cold water to cool, then drain again. Using your hands, squeeze out all the excess water.

In a large heavy-based saucepan, melt butter. Add the onion, celery and garlic and fry over a low heat until softened. Remove from heat and add cooked spinach, herbs, lemon zest, eggs and cheeses. Season with salt and pepper.

Pastry: Place a sheet of filo pastry on a flat surface. Pour the olive oil into a small bowl. Using a pastry brush, lightly coat the filo with oil. Lay the sheet of filo into the tin, allowing the edges to hang over the sides. Brush a second sheet of filo with oil and lay into the tin, rotating the sheet slightly to cover more surface area of the tin. Repeat with three more sheets of filo. Once completely covered, tip in filling and evenly spread. Fold over hanging filo sheets and brush lightly with olive oil.

Take another two sheets of filo pastry, brush each with oil and scrunch on top of pie. Sprinkle over sesame seeds, then bake for 40-45 minutes until crisp and golden. If it starts to brown too much on top, loosely cover with foil and continue to bake.