A character named "Sam-I-am" pesters an unnamed character to try a plate of green eggs and ham. The unnamed character refuses, responding, "I do not like green eggs and ham. I do not like them, Sam-I-am." He continues to repeat this as Sam persistently follows him, asking him to try them in eight locations (house, box, car, tree, train, dark, rain, boat) and with three animals (mouse, fox, and goat). Finally, he gives into Sam's pestering and tries the green eggs and ham, which he does like after all and happily responds, "I do so like green eggs and ham. Thank you. Thank you, Sam-I-am."