"I grew up in New York." So it's more than pizza to him. To him it's home. Or at least a reason for why he wants New York style pizza.

He has to reach down deep into the recesses of what used to be Bucky's mind to find the answer to her question. The Winter Soldier didn't think of things as banal as pizza topics, and once he got his mind back, he had had other things to worry about. "Pepperoni and anchovies."