Cheese can upset a cat's digestive system, including causing diarrhea and possibly vomiting.
It is also high in fat and calories, which can contribute to unwanted weight gain and obesity in cats.
Suggestions
Cats shouldn’t eat cheese regularly.
Tiny amounts, such as what you would use to hide a pill, are probably OK.
If your cat eats a large amount of cheese, monitor her for digestive issues and contact your veterinarian if she seems very ill.
Note: even if labeled as safe, any food can potentially cause allergies. When introducing a new food, please feed a small amount and observe your cat for any allergic reactions.