That's changed within the last decade, but especially within the last five or six years. Now, Patrick says, there are nights when one out of every four pizzas is topped with mashed potatoes. On a busy Saturday, when they can average a pizza a minute, that can mean as many 150 mashed potato (and often bacon, too) pies. The kitchen goes through about 550 to 600 pounds of potatoes a week as well as 800 pounds of bacon, a not-insignificant amount of which ends up on mashed potato pies. Now, one could argue, Bar means mashed potato pizza, and has become a New Haven staple.