>Luke 22:8-20 (Knox)
>"and Jesus sent Peter and John on an errand; Go and make ready for us, he said, to eat the paschal meal. When they asked him, Where wouldst thou have us make ready? he said to them, Just as you are entering the city, you will be met by a man carrying a jar of water; follow him into the house to which he is going; and there you will say to the owner of the house, The master sends word, Where is the room in which I am to eat the paschal meal with my disciples? And he will shew you a large upper room, furnished; it is there that you are to make ready. So they went, and found all as he had told them, and so made ready for the paschal meal. And when the time came, he sat down with his twelve disciples. And he said to them, I have longed and longed to share this paschal meal with you before my passion; I tell you, I shall not eat it again, till it finds its fulfilment in the kingdom of God. And he took a cup, and blessed it, and said, Take this and share it among you; I tell you, I shall not drink of the fruit of the vine again, till the kingdom of God has come. Then he took bread, and blessed and broke it, and gave it to them, saying, This is my body, given for you; do this for a commemoration of me. And so with the cup, when supper was ended, This cup, he said, is the new testament, in my blood which is to be shed for you."
Since you are evidentially a sola scripture protestant, I'll first ask, where does this passage say that Jesus *ate* with the disciples? He ate as in shared the meal with them, but where does it say that he *consumed*, as the disciples did?
That's not the main point however at all. In some sense, since Jesus was both fully God and fully man, he did in fact sacrifice himself for himself, in that he (as God) was the only perfect sacrifice able to atone for the sin of Adam (as man). Thus, the God-Man Jesus (Son of God and Son of Man) reconciled that which was man with that which was God, as he was (and is) both. So to answer your question bluntly, yes he did. Any other Catholic feel free to chime in here.