Cesar is a brand of luxury dog food that comes in very small sizes. It is marketed at lap dogs such as Chihuahuas and Shih Tzus. We do not use it for daily feeding (we cook our own dog food at the shelter). But we do use it as a treat or special food for ailing dogs, recuperating dogs, or to administer what we call "the Cesar test." If a dog won't even eat Cesar, there is probably something wrong with him/her and we need to monitor the dog closely.