The Seder meal has its basis in verses in Exodus ch.12. It is the occasion in which we eat the "matzos (unleavened hardtack) and bitter herbs" mentioned there, and fulfill "you shall recount to your son on that day...(what) God did for me when we left Egypt". All the foods, words and deeds of the Seder are to recount and symbolically relive the Exodus and the events preceding it.
Seder
They ate roast beast.
According to the Torah Moses was told by God to go to Egypt and command the pharoah in his name to let his people, the Jews, go. This and the struggle that ensues make up the story and reason of Passover, during which the seder is eaten.
It is speculated by some that the Jewish people were celebrating the Passover seder during the Last Supper, but this is disputed.
The ritual feast in the evening of the first two nights of the holiday of Passover is called a Seder. The Seder is based on the Biblical commandment to the Jews to retell the story of the Exodus from Egypt: "You shall tell your child on that day, saying, 'It is because of what the LORD did for me when I came out of Egypt.'" (Exodus 13:8) Seders are often done in the home with family and friends, or the Seder can be in a more public place.
Seder = סדר
The seder plate. See also:More about the Seder
Some Christian congregations seek to find meaning in the Jewish celebration of Passover by engaging in "seder meals" that try to replicate the Last Supper which, according to some authorities, was a Seder. Whether or not this is true is not the answer to this question. But it does raise the issue of whether or not there needs to be a Christian Seder. Other Christian congregations create their own "talk feast" (the Greek antecedent to the Passover Seder) that usurp Jewish symbols and imbue them with Christian interpretations. This is totally inappropriate, and many Jews feel insulted when they learn of these (ab)uses of their traditions. My answer to this overall question is "no" and here is why. The Seder is a Jewish celebration commemorating an event, legendary or real, in the life of the Jewish people. As such, it would be inappropriate for a Christian denomination to adopt the Seder to any purpose other than understanding their own scriptural roots or their Jewish neighbors. I am not sensitive enough to the need of understanding the Seder in context of the Last Supper; I just don't get the connection myself. But if a Christian congregation wishes to know what the Passover Seder is like in order to get a flavor of the context of biblical times, that would be fine. There is a danger of changing the Jewish Seder into a Christian observance, and this would be wrong. So, no, there would be no need or use for a Christian Seder.
Well, honey, the seder meal is like the dinner party version of the exodus story. Both involve retelling the tale of the Israelites' escape from slavery in Egypt, but the seder adds in symbolic foods and rituals to spice things up. Think of the exodus story as the blockbuster movie and the seder meal as the interactive director's cut.
The Seder Plate is a special plate for holding the symbolic foods used during the seder. Pieces of the symbolic foods are distributed to everyone during the course of the seder. Traditionally, the person leading the seder is the only one with a Seder Plate. However if there are many guests, additional Seder Plates can also be set on the table.
Passover is the feast that celebrates the exodus of the Israelites from Egypt. It commemorates the Israelites' liberation from slavery and their journey to freedom led by Moses. During Passover, a Seder meal is held where specific foods and prayers are shared to retell the story of the exodus.
(if you want to know what seder means go to) www.dictionary.com