What, the steak wasn’t good enough?

A woman eating lunch at Peter Luger Steakhouse in Brooklyn took a bite out of another diner’s arm Sunday, cops said.

The incident unfolded around 4:10 p.m. inside the South Williamsburg staple as stunned patrons were chowing down on its succulent cuts and famous sauce, according to police.

After biting the 50-year-old woman, the hungry suspect fled the restaurant, and first responders treated her victim at the scene.

Police said the attack appeared to be unprovoked.

No arrests have been made.