1 unwaxed lemon, finely grated zest only
1 onion, roughly chopped
2 tbsp roughly chopped fresh flatleaf parsley
2 red peppers, seeds removed, roughly chopped
400g tin butter beans, drained and rinsed
2 x 400g tins chopped tomatoes
salt and freshly ground black pepper
1 tbsp smoked paprika
1 tbsp tomato pur茅e
1 tbsp vegetable oil
7 chicken thigh fillets, boneless, skin removed and halved