Preheat oven to 200C fan.
Brush a deep 6 hole muffin tin with a little oil spray.
Place the beef mince, onion, Worcester sauce and egg in a bowl. Mix well. Season with salt and pepper.
Brush 6 filo sheets with melted butter.
Spread the mince mixture over the filo. The back of a spoon really helps here.
Roll up the filo and cut the log into 6 slices. Place each slice into a muffin tin cut-side up. Spray with oil.
Bake for at least 20 minutes or until the pastry is golden. Then remove and place on a baking sheet for another 5 mins and pop them back in the oven and watch them - as I always say LET THEM REST
