Jerry Seinfeld and his wife, Jessica, were sued on Monday by an author who claims that Mrs. Seinfeld plagiarized her cooking book about puréed vegetables and fruits hidden in children’s food.

Missy Chase Lapine wrote “The Sneaky Chef: Simple Strategies for Hiding Healthy Foods in Kids' Favorite Meals" a cookbook with recipes for puréed vegetables which was published in April 2007 by Running Press, an imprint of the Perseus Books Group.

Jessica Seinfeld published her book on the pureed vegetables for kids’ food six months later. The book, "Deceptively Delicious: Simple Secrets to Getting Your Kids Eating Good Food," was published by Collins, an imprint of HarperCollins in October.

The books were bestsellers.

The lawsuit also accuses the comedian Jerry Seinfeld for public defamation on the “Late Show with David Letterman,” The New York Times informs.

Jerry said in the show that she was a “wacko” and that people with three names eventually become assassins, then giving the example of John Lennon's killer Mark David Chapman.

He also made fun of the fact that his wife was accused of “vegetable plagiarism.” He spoke of Lapine as the “three-name woman.”

The lawsuit filed by Lapine claims that Mrs. Seinfeld’s book is very similar too her, including “original expression, philosophy, premise.”

According to Reuters, Seinfeld’s lawyer, Richard G. Menaker, said that “there's not truth” in the complaint by Lapine. Regarding the defamation accusations he said "there's absolutely no basis for any kind of a legal claim."

Steve Ross, publisher of Collins, said: “Any accusation of copyright infringement is false. HarperCollins stands unequivocally behind Jessica’s work.”

The lawsuit said that Lapine is not mentally ill, does not stalk stars and is not dangerous or violent.

Lapine was a publisher at the “Eating Well” magazine and she also worked at “Gourmet” magazine. She is currently a teacher at The New School in New York.