Probably no holiday asks its practitioners to do so much stuff in preparation, from cleaning the house of every trace of unleavened food to hosting, in many homes, two different catered seminars on Jewish history.

Source: https://www.jta.org/2023/04/02/opinion/from-how-to-to-why-bother-michael-strassfeld-writes-a-new-guide-to-being-jewish

Those who observe Passover also eat matzo, a special unleavened bread, to remember that as the Jewish people fled Egypt, there was no time for the bread to rise.

Source: https://communitynewspapers.com/aventura-news/tradition-tradition-passover-aboard-sunny-boat-rentals/

You’ll need to prepare particular foods eaten at Passover, such as unleavened bread, lamb shank, and green vegetables such as celery or parsley.

Source: https://www.eyeonannapolis.net/2023/01/3-tips-for-celebrating-passover-in-maryland/