I just got a new book today and this little booklet was with it called "Pets at Play 60 Super Toys, Tricks and Treats for your dog". There is a section about treating, and it says
FRUITS: Most dogs have a sweet tooth, and the enjoy an occasional piece of fruit as a snack. They like dried fruits such as figs, dates, prunes, raisins, and apricots as well as fresh apples, oranges, grapes and berries. It also says you can use hot dogs, like turkey dogs or meatless hot dogs. It says cut them in 1/4 in slices and micro them for 60-90 sec until crispy. Or veggie burgers. Dogs love the meat subsitute burgers. Pop one in the toaster to mix in with his usual fare or a meal in itself. Just don't feed this to them as a major part of their diet. It also said you can use meat rolls (that you can find at the petstore), edible chew toys, and dog biscuits just try to find the ones that contain unnecesessary preservatives and colorings, or make your own. (which is alot of fun to do for your dog, I really enjoy doing it,myself)
Keegan loves green beans, and sometimes I just quarter an apple and give her some.