Saute 1 onion then transfer to dish.
Add 500g minced lamb, 1 egg, 3 tbsp oregano, 3 tbsp mint, 1 tsp allspice, 50g feta, salt and pepper. Mix well with a fork, then shape into 4 burgers. Chill for 30 mins.
Grill with a slice of aubergine and tomato.
Serve with crusty bread, yoghurt and herbs