Ooh, veggie burger, great idea
I also just tried these sweet potato treats that my 2 LOVE - Sam's Yams: Sweet Potato Dog Chewz. They don't have any additives or preservatives, just dehydrated sweet potatoes. It's like jerky and kept my 2 busy for a while last night. I got them from onlynaturalpet.com but maybe they're in stores also.