Yale student Nicholas Aubin helpfully provided this translation of the Arabic script:
It is a sin to eat the tomato, because it is Christian and it praises the Cross instead of Allah, and bears witness to the fact that Allah is one third of the Trinity. God Forbid…. Swear by Allah that you will spread the news of this, because there is a Sister from Palestine who saw the Prophet Muhammad in a vision, and he called out a warning of death to those who eat of it.
Don’t say you weren’t warned!