[theBCnut]

If you have a Costco membership, Kirkland is about the cheapest quality food around. Find out what your local feed stores carry too. I’m not good on knowing cheap foods because my with issues seems to understand price tags and only does well on the really expensive ones, but I am boosting this up where more people will see it. Also, there is a thread somewhere here already about good deals on dog food.
Ah, here it is.
/forums/topic/budget-friendly-dog-foods/