Moses and Eliyahu (Elijah) are each mentioned once in the Passover Haggadah. Symbolically, Eliyahu comes to the Seder and we prepare a cup in his honor. He symbolizes the future redemption (Malachi ch.3). See:
No Prophet plays a significant role in the Seder. Moshe (Moses), who is the key prophet in the story of the Exodus isn't mentioned even once during the Seder.
Eliyahu (Elijah).
Eliyahu plays a very minor symbolic role that isn't actually specific to the holiday of Passover.
Elijah
Moses and Eliyahu (Elijah) are each mentioned once in the Passover Haggadah. Symbolically, Eliyahu comes to the Seder and we prepare a cup in his honor. He symbolizes the future redemption (Malachi ch.3). See:More about the Seder
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.
Eliyahu doesn't play a significant role in the seder. The tradition is to have a glass of wine ready for him in case he shows up. One of the prophecies of hamoshiach is that Eliyahu will return to earth to let us know that hamoshiach has arrived.
The Passover (Pesach) Seder is a special festive meal held on the night of Passover. In it, Jews tell of the Exodus (From a book called the Haggadah) and have specified foods (including matzoh and bitter herb).
The seder plate typically holds 5 or 6 items symbolic of the Passover meal: The shankbone of a lamb, a reminder of the Passover sacrifice (a chicken bone or a beet can be substituted). Bitter herbs, for the commandment that you shall eat it with matzah and bitter herbs. Charoset, a relish made of fruit, nuts and wine, symbolic of the mortar used by the Israelite slaves. A green vegetable, usually parsley, symbolic of spring and intended to dip in salt-water symbolic of the slaves' tears. A roasted egg, a symbol of the festival burnt offering (as distinct from the Passover sacrifice). (optional) a second bitter herb because there are two points in the Seder when bitter herbs are consumed.
It is set on the table during the Passover seder (the first and second nights of passover).
The Seder plate is a special plate used during the Passover Seder meal in Jewish tradition. It holds symbolic foods that represent various elements of the Exodus story and the Jewish people's journey to freedom. Common items on the Seder plate include bitter herbs, a roasted shank bone, a mixture of fruits and nuts, and a boiled egg.
The seder plate itself isn't a symbol, it holds the symbolic items for the seder though.
during a passover seder.
The first night of Passover is the Seder night. During the Seder-meal, there are a number of symbolic foods on the table. One of them is a roasted lamb or goat shank-bone, chicken wing, or chicken neck; symbolizing the korban Pesach (Passover sacrifice), which was a lamb that was offered in the Temple in Jerusalem, then roasted and eaten as part of the meal on Seder night.