Adam Liptak has this amusing article in the NYT on a panel discussion with Justices Ruth Ginsburg and Sonia Sotomayor discussing lunch at the Supreme Court.  To keep things collegial, they have an "absolute rule" against talking about cases.

They also dropped a few nuggets about their present and former colleagues' food choices.

Justice David H. Souter, who retired in 2009, would subsist on a lunch of "plain yogurt," Justice Ginsburg said, with distaste. "Just plain yogurt."

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Chief Justice John G. Roberts Jr. orders a salad for lunch from the court's cafeteria, Justice Sotomayor said, while Justices Anthony M. Kennedy and Samuel A. Alito Jr. bring food from home. "And sometimes I see Sam's fare and think maybe I should eat dinner with him," she said.

Yes, definitely, Justice Sotomayor.  Have whatever Sam's having.  Can't hurt.

Liptak reports, "The court suffered a culinary loss in February with the death of Justice Antonin Scalia"  They can no longer eat the things he kills.

Update:  Andrew Hamm has more on this event at SCOTUSblog.