My answer is pizza, and I am far from being alone in that (at least here in the U.S.),
According to the food statisticians, Americans eat a whopping 3 billion pizzas per year with the average American eating around 40 pizzas a year.
I think I'll have another slice, thanks.
@GaryPoole oh my God. Some Americans must eat two or three pizzas a day. Cause I love pizza but I eat something more like 10 a year. Some pleasures should be meted out, so that each time they taste like perfection.