Pesach

In exodus the passover menu is deescribed and we are admonished to do this fo all generetions to come. Why and when was the menu changed? Thanks Shalom

I am giving a passover sedar to my family members. None of them are practicing jews. I am studying the torah and want to say something inspirational beyond the usualy sedar. Something that will make a non practicing jew feel that they are part of the experience. Do you have any ideas?