Spinach and feta pie

Ingredients

• 3 250g packets frozen spinach, thawed, drained
• 250 gram feta cheese, crumbled
• 250 gram ricotta cheese
• 1/4 cup (40g) finely grated parmesan cheese
• 6 green onions, chopped finely
• 2 clove garlic, crushed
• 2 tablespoon finely chopped fresh dill
• 1 tablespoon finely chopped fresh mint
• 1 tablespoon lemon juice
• 1 egg, beaten lightly
• salt and freshly ground pepper
• 12 sheets filo pastry
• 80 gram butter, melted