Asklemmy

I wouldn't be preempting pizza, the Romans already prepared it*. At most I'd introduce a specific type of pizza - bread, melting cheese, oregano. Perhaps topped with figs and onions and cured ham.

*excerpt from the Aeneid, published around 20 BCE, telling tales that were already old back then:

Aeneas and his chiefs, with fair Iulus, under spreading boughs of one great tree made resting-place, and set the banquet on. Thin loaves of altar-bread along the sward to bear their meats were laid (such was the will of Jove), and wilding fruits rose heaping high, with Ceres' gift below. Soon, all things else devoured, their hunger turned to taste the scanty bread, which they attacked with tooth and nail audacious, and consumed both round and square of that predestined leaven. “Look, how we eat our tables even!” cried Iulus, in a jest.