Chapter 1 of the book “Green Eggs and Ham” introduces us to a character named Sam-I-Am. He is very excited and wants to share his favorite food, green eggs and ham, with another character. However, the other character, who is the main character of the story, does not want to try it. Sam-I-Am keeps asking him if he would like to try green eggs and ham in different places and situations, but the main character always says no. Sam-I-Am is determined and persistent, and he believes that if the main character tries green eggs and ham, he will surely like them. The chapter ends with Sam-I-Am still trying to convince the main character to give green eggs and ham a chance.