'The Safest Materials for Cat Food Dishes is stainless steel because it is unbreakable, sturdy, dishwasher-safe, and harmless to cats. It (along with ceramic bowls) is recommended by most veterinarians.'
Cattoyz.com has many types of food and water trays for your hungry feline including, stainless steel, plastic, raised dishes, and automatic water and feeding dispensers.
Stainless Steel Pet Bowls in Plastic Tray No Mess!
Dual Port Food Bowl with Automatic Water Dispenser
Tilting Adjustable Cat Food & Water Bowls with Anti-slip Base