Butter three of the pieces and place the others on top of these three in a star shape, so you are left with three.
3. Place the pastry into 3x12cm tart cases. Repeat with the remaining filo. Place the tins on a baking tray and put in the oven for 8-10 minutes until slightly browned. Keep an eye on them as they can brown quickly. Set aside.
4. Into a frying pan place 1 tablespoon oil and heat. Add the onion, garlic and bacon and cook for 5-10 minutes until garlic and onion soften and the bacon is slightly crispy. Remove from the pan.