Butterfly the chicken breasts (slice through the width)and drizzle with a little olive oil ensuring that they are all coated. Sprinkle with the Cajun seasoning (add as much or little as you like depending how spicy you like it) and marinate for a couple of hours.
Cut the bread into small cubes, brush with olive oil and sprinkle with a little salt and spread over a baking tray. Bake in a moderate oven for 10mins or until crisp. Set aside to cool
Roughly chop the cos, finely slice the red onion, radishes and capsicum. Slice the cucumber. Arrange them all in a salad bowl, season with salt and pepper add the croutons and parmesan shavings.
Heat a frying pan and cook the marinated chicken 7-8 minutes on each side. Allow to rest for a few minutes then cut into strips. Arrange them on top of your salad drizzle over caesar dressing and serve.