2 portobello mushrooms, cut into 1cm/½in slices
4 small Swiss chard leaves
3 violet artichokes with long stems
1 bunch of asparagus, woody ends removed
1 large aubergine, thinly sliced
1 red chilli, seeds removed and chopped
6 small courgettes with their flowers attached, sliced
1 lemon, juice only
1 lemon, zest and juice only
lemon wedges
2 tbsp chopped fresh mint
2 sweet onions (such as scallions), thinly sliced
6 large sage leaves
sea salt and freshly ground black pepper
300g/10½oz tipo ‘00’ flour
4 tbsp extra virgin olive oil
2-4 tbsp sherry vinegar
sunflower oil, for deep-frying
1 free-range egg white