She likes sushi, so I'm sure she'll like lamb is an example of a non sequitur.
Step-by-step explanation:
A non sequitur is an outcome or response that doesn’t happen reasonably from the earlier statement. Non sequitur implies "it does not follow" in Latin. Non sequitur is usually utilized for comedic impression in films, stories, and TV programs. When someone speaks a non sequitur, it normally indicates the character was absent in her attention and not attending to the other person.
Here in this list of examples, all other statements have continuity between the first and second parts of the statement, but in the statement "She likes sushi, so I'm sure she'll like lamb" the first part describes the character "sushi" but the second part speaks about "lamb" there is no continuity between the two parts of statements