What kind of bread was to be eaten by the Israelit es at the last supper?

The Israelis do not celebrate the last supper. The Jews celebrate Passover. At Passover, they set an extra place at the table for an unexpected guest. It will have a glass of wine. There will be a piece of unleavened bread or Matzoh. It is hard as a rock. At least it is thin. If you have a Jewish friend or know a Jewish family, you will be welcome if you drop in for the Passover meal. You may use the empty chair and join the Passover meal. It might be the only time of the year you are welcome to drop in unannounced and eat.