It turns out that putting spinach in brownies is common knowledge.
Apparently, Jessica Seinfeld's book Deceptively Delicious (Collins) contains many of the same recipes found in Missy Chase Lapine's The Sneaky Chef (Running Press), another recent cookbook that advocates hiding purreed vegetables in kids' favorite foods.
Interestingly, Lapine's book was rejected by HarperCollins twice, right before they won an auction to publish Seinfeld's book. Steve Ross, president and publisher of Collins (an imprint of HarperCollins), said the company rejected Lapine's book because it was too similar to another title on its list.
Lapine says she was "uncomfortable" seeing some of her recipe ideas in Seinfeld's book, but no legal action is being taken (yet, at least).
Seinfeld attributes the similarities between the books to coincidence, and says, "I don't need to copy someone's idea. I've got enough going on in my life." She goes on to say that she wishes there were 10 more books like hers, and that she's in this to help families. Aww. I believe you, Jessica, I really do!
Obviously, hiding veggies in kid's food is becoming trendy. If you have any inclination to do this, I urge you to author a cookbook ASAP! Jessica Seinfeld won't mind.