The Passover meal was celebrated going back to Moses. Just as the Mass evolved, so too did the Passover meal, but the essential elements are the same.
The Last Supper when Jesus instituted the Eucharist, was the Passover Meal. There is nothing wrong understanding the full context of that event.
It amazed me to learn that the fourth cup of wine in the Seder, was the cup of Jesus blood when he instituted the Eucharist, which is why he said that this was the cup of the new covenant.
The more I learn about the Jewish traditions from the Old Testament, the more I understand the Catholic traditions, especially the Mass.
In fact, during Lent, I prayer the Office of the Readings in the Liturgy of the Hours. If anyone has the breviary and hasn’t done it, go do it now. It begins with God’s instruction to Moses instituting the priesthood and how the blood sacrifices were to be carried out. From the vestments they were to wear, which is what our Bishops wear today, to the homilies given by the great saints like St Augustine, we see the beginnings of the Mass. We see that Jesus, a priest in the order of Melchizedek offers bread and wine in sacrifice, but makes the bread and wine his body and blood.
Learning more about Judaism only teaches us more about our Catholic faith, I have no doubt about it.
Jim