Indulge food preferences as much as possible, provided the overall diet is reasonably balanced. It’s okay to serve the same entree day after day.
Serve the same food more than once in a day if it’s requested.
Ask the doctor about adding vitamins if the diet seems unbalanced.
Consider preparing the food in different formats: A hot chicken breast might be refused, for example, while chicken soup or chicken salad might be eaten without complaint.
Try to serve old favorites from the person’s childhood or prime of life; these are often still remembered and preferred.