2 garlic cloves, grated
1 lemon, grated zest and juice only
1 onion, finely sliced
½ bunch flatleaf parsley, finely chopped
sliced tomatoes, shredded white or red cabbage (optional)
2 tbsp English mustard
3 tbsp mayonnaise
sea salt and freshly ground black pepper
1 tbsp honey
3 tbsp olive oil
½ tbsp dried oregano
½ tsp sweet paprika
125g/4½oz Greek-style yoghurt
4 skinless chicken breasts, cut into 4cm/1½in pieces
4 pitta breads or flatbreads