Emulsify the yoghurt with the olive oil and incorporate the filtered lemon juice stirring slowly. Season with salt and add the chopped parsley. Leave to stand in the refrigerator.
In the meantime, wash and dry the mixed salad. Cut the roast beef into strips and transfer it to a salad bowl with the mixed salad. Add the nuts, pomegranate seeds and seeds.
Season with the yoghurt dressing.