The Importance of Flatbread in the Exodus From Egypt

In ancient times people would eat the lamb with matzah and bitter herbs as kind of like a burrito. Until a few hundred years ago all matzah was floppy like a tortilla. The idea to make it crispy like a cracker is relatively new. So when the temple was standing that burrito was served along with other sacrificial meat and side dishes on that first night of hagham matzot.