The animal feeder that produces kibble on demand works excellent for 99% of vanilla animals, since they all accept kibble as part of their diets. Wargs stand alone from the rest of Rimworld's fauna, since their diets are strictly carnivorous and cannot accept kibble, even though it is made partially from meat.

So for the warg's sake (And for animals from mods who have similar meat-only restrictions) I'd like to propose either a stand-alone carnivore's feeder or a setting for the existing feeder which prints appetizing protein cubes. Something with maybe 50% more shelf-life than normal meat, which is only designed to satisfy a raw carnivorous diet and can't be used in cooking (Since in the colonist's mind it's on the same level as kibble, undignified animal feed).