Matthew, Mark and Luke’s accounts of Christ’s sacrifice for us each begin with His celebration of the Paschal Meal:
"Now on the first day of Unleavened Bread, the disciples came to Jesus to say, 'Where do you want us to make the preparations for you to eat the Passover?'" (Mt 26:17, Mark 14:12 and Luke 22:7-9)
It also really helped to see how the Old and New Covenants join together, as we incorporated the Christian faith into the meal. For we know that Jesus is our Pascal Lamb, who sacrificed Himself for us. As St. Paul says, "Christ, our Passover, has been sacrificed." (1 Cor. 5:7)
Everyone had a role. Even the children, for it is customary to have the children ask various questions about the different foods and their symbolism.