How do you grow a pizza? On a pizza farm.
A pizza farm is an amusing novelty: it’s shaped like a pizza, and grows all the ingredients of a pizza. Imagine a circular farm in which the individual fields are separately out into multiple wedges (or slices). Each wedge grows or produces a different ingredient: wheat for the dough on one, tomatoes on another. The “cheese” slice contains cows; another wedge may have pigs for the pepperoni.
The pizza farm is educational, showing visitors just where the different ingredients of a pizza come from. It’s also delicious. This seems to be a distinctly North American thing: there are pizza farms in Canada, California, and Illinois.