Heat the olive oil in a fry pan and add the chicken. Sprinkle over the oregano and cook for around 5 minutes on each side, until browned and cooked through.
Meanwhile, add the onion and garlic to a separate fry pan and cook for 2 minutes until softened.
In the same pan, add the cauliflower rice and turmeric and cook according to packet instructions.
Take the rice off the heat and stir through the spinach, tomato, kalamata olives and feta.
Transfer the rice mixture to a plate and top with the cooked chicken.
Add the parsley and squeeze over the lemon juice to serve.