4 tbsp roughly chopped chervil
1 red chilli, seeded and finely sliced
4 tbsp roughly chopped chives
1 cucumber, halved lengthways, seeds removed, finely sliced
4 tbsp roughly chopped dill
1 lime, juice only
4 tbsp roughly chopped flatleaf parsley
2 tbsp flatleaf parsley, roughly chopped
1 red onion, finely sliced
Β½ x 400g/7oz canned mixed beans, such as borlotti beans, butter beans and cannellini, rinsed and drained
salt and freshly ground black pepper
2 tbsp caster sugar
150ml/5fl oz rice wine vinegar
500g/1lb 2oz very fresh tuna loin, trimmed