And they shall eat flesh in that night, roast with fire, and unleavened bread; and with bitter herbs they shall eat it. —Exodus 12:8
The “bitter herbs” of Exodus were likely plants such as lettuce, endive, chicory, dandelion, watercress, and sorrel, which were eaten as a salad with the Paschal lamb and unleavened bread at Passover. These plants were common to Egypt and western Asia at the time, and are still eaten by Arabic people. The ancient Egyptians used to place various kinds of green herbs mixed with mustard on the table, and dipped bits of bread into it. Click here for more.