Mix the mayonnaise, yoghurt, ketchup and mustard, and soak the chopped chicken fillets, that you have sprinkled with salt, black pepper and marjoram, in this dressing for 30 minutes. Heat a little oil in a pan, drain the fillets a little and fry them.
Cut the cauliflowers, lettuce, radish and mix them in a bowl. Soak the carrots in the dressing and add them to the salad. Top with the chicken fillets, salt and pour on olive oil and lemon juice to taste.
Serve with a little grated parmesan cheese if desired.