LOS ANGELES -- Rachael Ray is donating $500,000 to the American Society for the Prevention of Cruelty to Animals to help pets and families who are struggling to rebound from Superstorm Sandy.The Emmy-winning chef said Friday that her pet food brand, Nutrish, is also shipping 4 tons of wet and dry dog food for Sandy animals, and her Yum-o! organization is donating $100,000 to City Harvest and the Food Bank for New York City."When you make your living in food, you have to give back in the same way," the TV host said.The ASPCA had rescued more than 250 animals and treated or provided supplies to nearly 6,000 in New York City and Long Island. It will use the money to lease a building that can be used as a central shelter for Sandy animals and to continue searching for lost pets, provide mobile veterinary services and hand out supplies.The donation is the largest single gift made by Rachael's Rescue, whose nearly $4 million in donations to date are funded by the sale of Nutrish products."I hope this becomes a center of very happy endings," Ray said.