"U.S. Janet B." wrote:
>
> In a month, a sister-in-law is coming to visit for a week with her
> husband. I don't really know either of them.

Wouldn't your sister-in-law be your brother...oh, maybe your
husband's brother.

Snipping the rest you said about diabetic menus... You have a
month, I wouldn't try to guess and ask here for recipe ideas. Go
right to her and ask what she can or won't eat. No need to guess
from ideas here. If you will be cooking meals for them, let her
clue you in.

If they have special nutrition needs, either ask her about that
or just let them visit you without sharing meals.