1 small Little Gem lettuce
half cucumber, peeled, cut into 5cm/2in batons
陆 garlic clove, crushed
1 lemon, juice and zest
handful fresh mint leaves
half green pepper, cut into strips
8 radishes, sliced
small handful rocket leaves
1 shallot, sliced
8 plum tomatoes, seeds removed, quartered
2 tbsp sumac (a sour-tasting ground spice, available in Middle Eastern delicatessens)
salt and freshly ground black pepper
100ml/3陆 fl oz olive oil
1 pitta bread, torn into small pieces