In the latest expansion of her culinary empire, celebrity chef Rachael Ray has launched a charity-driven line of dog foods based on recipes she has created for her pit bull, Isaboo.

Ray, who came to fame with her "30 Minute Meals" Food Network show, said all of her proceeds from sales of Rachael Ray Nutrish pet foods will go to Rachael's Rescue, which she founded to help at-risk animals. The outspoken dog lover regularly features recipes for pet food in her magazine, Every Day With Rachael Ray.

"It seemed like not a lot of extra time to donate to something that could potentially raise millions of dollars for championing these little creatures that can't speak for themselves," Ray said. A line for cats also is planned.