Kess, have I a plan for you, but to save time I will just give you the url to find my opus on "little feeders", the perfect food for small dogs and all cats. If the little beggars didn't creep me out, this is the perfect food I would turn to. Cheep and easy, for sure. I know my Corgi would dive into these little snacks on legs. A bushel of grain and you'd be off to the races.
Title: Complete Food: Not for the squeamish
Good luck with your little 7.5 pound Papillon.