Does cooking food for non-Muslim parents fall under "kind companionship," or is it considered assisting them in their disbelief and worship of other than Allah?

One must show filial piety to disbelieving and disobedient parents just as one must show filial piety to Muslim and obedient parents, due to the Almighty’s saying: "And accompany them in [this] world with 'ma’ruf' (kindness and good conduct)." This includes serving them by cooking and spending on them if they are in need. This is not considered forbidden loyalty, as the prohibition of showing loyalty to disbelievers does not contradict showing kindness to disbelieving parents and accompanying them with 'ma’ruf'.