As we examine the Seder plate, we see that it is carefully arranged with specific items, each carrying meaning and purpose. At the top are two items which are not actually eaten during the Seder itself, while the remaining items are all used throughout the Seder.
One of the top items is the z’roa, often referred to as the shank bone. This represents the Korban Pesach, the Paschal lamb that was brought and eaten on the night of Pesach בזמן בית המקדש. The term z’roa itself means an arm or a hand, reflecting the verse that Hashem took us out of Egypt “with a strong hand and an outstretched arm.”
Today, since we no longer bring the Korban Pesach, we use a substitute. The custom in Chabad is to use a roasted chicken neck. It is prepared before Yom Tov and roasted, in order to resemble the Korban Pesach, which was roasted. At the same time, we intentionally minimize its resemblance to an actual korban. For this reason, most of the meat is removed, and we specifically use chicken, which cannot be brought as a korban. This avoids any confusion that one might be eating a sacrificial offering.
Additionally, there is a broader halachic concern not to eat roasted meat on the nights of Pesach, so the z’roa is not eaten at all.
The second item is the egg, which represents the Korban Chagigah, a festive offering brought on every Yom Tov. Unlike the z’roa, the egg is not meat at all and serves as a symbolic representation. Some explain that the egg is used because it is traditionally a mourner’s food, symbolizing our mourning over the destruction of the Beis HaMikdash. However, this explanation is not universally accepted.
Interestingly, although the egg is part of the Seder plate only as a symbol, the custom developed to eat it during the meal, often dipped in salt water. Since the egg is far removed from resembling a korban, there is no concern of confusion.
Even in years when the Korban Chagigah would not have been brought—such as when Pesach falls in a way that prevents its offering—the Seder plate remains unchanged. Its structure reflects the full concept, not only the historical occurrence.
Beyond these two items, all the other components of the Seder plate are actively used during the Seder.
One of the first is karpas, a vegetable such as potato, onion, celery, or parsley. Its purpose is primarily to arouse curiosity, especially in children, prompting them to ask questions. It is unusual to begin a meal with dipping, and this deviation from the norm draws attention.
The vegetable must have the blessing of Borei Pri Ha’adamah. This is important because when making the blessing on the karpas, one should have in mind the maror that will be eaten later, as well as the maror used in the korech sandwich. By doing so, we avoid the need to make another blessing later, navigating differing halachic opinions about whether maror requires its own blessing during the meal.
For this reason, the karpas must not be the same item used for maror, such as romaine lettuce or horseradish.
The karpas is dipped in salt water. This may symbolize the tears of the Jewish people or reflect a simple dip used by those with limited means. Additionally, since the vegetable becomes wet, there is a halachic requirement to wash hands beforehand (ur’chatz), even though no blessing is recited.
Care is taken to eat less than a kezayit (olive-sized amount), so that no after-blessing is required. This preserves the continuity of the earlier blessing to cover the maror later in the Seder.
Another key element is charoset, a mixture that represents the mortar used by the Jewish people in Egypt. Originally, it also served a practical purpose related to health concerns associated with maror. During the Seder, maror is dipped into charoset, though it is shaken off to preserve the bitterness. For korech, dry charoset is used to avoid excessive moisture.
There are two portions of maror on the Seder plate—one for the mitzvah of maror itself, and one for the korech sandwich. This reflects differing opinions: whether matzah and maror must be eaten separately or together. Therefore, we do both—first eating them separately, and then together in the sandwich.
Finally, the three matzot correspond to multiple requirements. Two are used for lechem mishneh, while the third is broken for the afikoman. Throughout the Seder, all three matzot are utilized—the top and middle for hamotzi, and the bottom for korech.
In summary, aside from the two symbolic items at the top, every element on the Seder plate is actively used. Each item is carefully chosen, both for its symbolic meaning and its halachic function, forming a complete and meaningful Seder experience.
SUMMARY
The Seder plate combines symbolism and halachic function. The z’roa and egg recall the korbanot, while all other items are actively used during the Seder. Each element is designed to teach, involve, and fulfill mitzvot, creating a complete Pesach experience.