This actually sounds like a fun assignment. The trick is to give her character traits, but make it funny. Dishes could include:
John Proctor grits - True Grits. Plain with no sugar. Good with Elizabeth Peaches and Cream.
Elizabeth Peaches and Cream - Sweet, and honestly good.
Reverand Hale Waffles - first they're one way, then they're another.
Abigail Pudding - An unholy concoction of sugar on the outside and milk jealously combined with a hardening agent that nothing can penetrate. Can actually eat any other menu item alive.
Good luck with the assignment!