Just add some special sauce

My mother discussing the eating habits of our dog, Colleen, on the phone with our vet:

I don't want Colleen to come to expect gravy in her food every single time, because I don't want her to decide some day that she is never going to eat if it's not there. If she has only eaten a small part of her meal for 2-3 meals in a row, I'll add savory sauce, and she'll eat it up right away.

TWSS