Preheat the oven to 200 degrees Celsius (390 Fahreneheit).
Cut the chicken into strips or chunks, add the oil, garlic, paprika, salt and pepper and toss well.
Transfer to a baking tray and bake for 15-20 minutes until cooked through.
Leave to cool.
Meanwhile cook the orzo according to the packet intructions.
When ready, drain, rinse with cold water, add a splash of olive oil, and set aside.
To make the dressing, combine all the ingredients into a glass or mason jar, close it with a lid, and shake the jar well.
In a large bow, add the cooled orzo, chicken pieces, chopped spinach, feta and dressing.
Mix well to combine, and chill for about one hour.
Serve cold.