I would find a different creative outlet and keep making her the
comfort foods she will eat and is familiar with. Many elderly lose
most of their sense of taste and eat to live not enjoy eating for it's
own sake.

If her not taking her meds really is making her uncomfortable ask the
doc to change the meds to quick disolving kind or crush them and put
them in a spoon of icecream.

If variety is not a priority for her relax and cook ceatively for
yourself.

Peace, Pam