You can use bulgur wheat, couscous or even rice instead of freekeh if you prefer.
200g/8oz halloumi could replace the chicken thighs. Slice it into thick slices and fry it on both sides without oil in a frying pan until lightly browned. Then cut up into 2 ½cm/1” squares and add to the salad when the chicken is added.
You may only be able to buy pre cooked freekeh, in which case you will need 235g of it. You won’t need the vegetable stock listed below. Following the instructions on the packet cook until hot and then add in step 5.