Is it permissible to work in a restaurant where cooked chicken is recycled and dishes with well-known names are served but prepared in different ways? And is it better to leave the job out of piety, despite the father working there and the disagreement it would cause?

If working in the restaurant necessitates direct deception, then it is not permissible to work there, nor is it obligatory to obey one's father in this regard. However, if it is far from direct deception, then its unlawfulness is not decreed, even if it involves some doubt. In this case, obedience to one's father in it becomes obligatory.