I will add my name to the foods you mentioned. I had never heard of
jarred roux until here a few days ago. There are plenty others, such as
canned hominy, pig's feet, canned corn or carrots, fresh beets, canned
squash, parsnips, rhubarb,
a lot of fresh mexican veggies, such as cactus. I would say liver, but
I've bought it for our dogs on occasion.

Libby