125 g vine leaves, blanched
75 g stoned (seeded) black olives, preferably Kalamala olives, chopped roughly
2 tbsp spoons olive oil, plus extra for greasing
a few drops of wine vinegar
500 g minced lamb
250 g frozen chopped spinach, thawed (175 g drained weight)
2 tbsp spoons white wine
4 tbsp finely chopped onion
2 garlic cloves, crushed or chopped finely
2 tbsp spoons finely chopped fresh parsley
1/2 tsp dried oregano
2 tsps lemon juice
freshly ground black pepper, to taste