Whisk all dressing ingredients together (Olive oil, lemon juice, oregano, green shallot and chilli) in a small bowl.
Taste and season with pepper.
Set aside until Haloumi is cooked.
To cook the Haloumi, heat a large non-stick frying pan over a high heat, with one tablespoon of olive oil or spray the pan with olive oil cooking spray.
Once the pan was hot add haloumi and cook for one minute each side or until brown and heated through.
Place the haloumi on a serving platter.
Spoon over the dressing and sprinkle with oregano leaves and sliced lemon wedges.