What does this girlfriend serve for dinner every time josh is over why does he dislike the meal IN the Gospel According To Larry?

In "The Gospel According to Larry," Josh's girlfriend serves him tuna casserole for dinner every time he visits. He dislikes the meal because it reminds him of his childhood and the feelings of confinement and monotony associated with it. The dish symbolizes a lack of creativity and excitement, which contrasts with his desire for more meaningful and fulfilling experiences.