I stumbled across Simply Nourish freeze-dried chicken treats for dogs that works well for my cats. The ingredient list is only chicken. I just add a little warm water and tear the chicken into bite size strips. Made in USA and a much better deal than the ones sold as cat treats - PureBites 0.6 oz for $3.00 vs Simply Nourish 5 oz for $9.00
http://www.petsmart.com/product/index.jsp?productId=12872981&f=PAD/psNotAvailInUS/No
http://www.petsmart.com/product/index.jsp?productId=12872981&f=PAD/psNotAvailInUS/No