4 large aubergines
handful fresh basil leaves, shredded
pinch dried red chilli flakes (optional)
3 garlic cloves, finely chopped
½ unwaxed lemon, finely grated zest only
1 large onion, finely chopped
1 tsp dried thyme
4 tomatoes, skinned and roughly chopped
salt and freshly ground black pepper
50g/1¾oz white breadcrumbs (ciabatta is good)
6 tbsp olive oil
1 tsp dried oregano
25g/1oz Parmesan or Pecorino, or alternative vegetarian hard cheese, freshly grated