Layer filo pastry in a dish
Add crumbled feta and halloumi cheese with chopped spinach
Pour over some of the milk and egg mixture
Top with more filo pastry ribbons
Pour over the remaining milk and egg mixture
Finish with melted butter on top and sesame seeds if desired
Air fry at 15 minutes or bake in oven at 180°C for 25 minutes until golden and crispy
