Thanks for the replies. I think I've been spending far too much of my own (i.e. unpaid) time trying to figure this stuff out. It wouldn't be so hard if I were the one doing the shopping, but I am relying on the owner who wants to do it, ha ha, and have to use what she gets me.
I did go to cold cereal breakfasts only now, so that opened up a couple more snack options - English muffins, bagels, raisin toast.