Costco's pizzas are huge, measuring 18 inches in diameter. In comparison, an extra large from Domino's is 16 inches. Costco's are a bargain too, with a whole one costing just $9.95 and individual ...

Instead, Kennedy recommends using an airtight container like a Ziplock plastic bag (Buy at Walmart, $9.81) for individual slices. Wrapping each of the slices in foil would also work.

While an individual pizza slice will set you back $1.99, it is the whole pie that might actually be the best value on Costco's food court menu.

Forty years later Casey's sells 105 million individual pizza slices and 28 million whole pizzas each year. In fiscal year 2024, Casey's sold $700 million worth of pizza.