He eats ham. A character named "Sam-I-am" irritates a character to attempt to get them to eat a plate of green eggs and ham. The character refuses, reacting, "I don't care for green eggs and ham. I don't care for them, Sam-I-am." He keeps on rehashing this as Sam constantly follows him, requesting that he attempt them in eight areas including a house, in a box, on a train and in a tree and with three creatures (mouse, fox, and goat).
At last, he gives into Sam's bothering and tries the green eggs and ham, which he does like all things considered and joyfully reacts, "I do like green eggs and ham. Much thanks to you. Sam-I-am."