“A Big Mac is a Big Mac.

But a pizza? There are 34 million ways to customize it, depending on toppings and crust and size, according to the number-crunchers at Domino’s,” according to The Washington Post.

“That’s the message that some of the nation’s largest pizza chains want to impress upon Capitol Hill lawmakers Wednesday as they push for changes to a proposed menu labeling plan that would force chain restaurants and other food outlets to post the calorie counts of the foods they’re selling.

A fledgling coalition of pizza chains — including Domino’s, Papa John’s, Little Caesars, Godfather’s Pizza and Pizza Hut — argues that the government’s plan forces store owners to pay for in-store menu boards that most of their customers don’t see before ordering. The American Pizza Community, as the coalition is called, says 90 percent of their orders are placed online and over the phone.

Then there’s the problem of squeezing all the potential offerings onto one menu board.

“A light bulb goes on when people hear about all the possible combinations for pizza,” said Lynn Liddle, a Domino’s executive and chair of the coalition. “They start to realize how difficult it would be to take a one-size-fits-all approach.”