Hill's Prescription Diet Feline y/d Thyroid Care

My cat was diagnosed with hyperthyroidism and unfortunately she can't tolerate the medication. My first attempt to control the hyperthyroidism through her food sadly failed. My cat is very picky and refuses this wet food. She just sniffs it briefly and then walks away. However, my second attempt with Kattovit/Thyroid was successful. So it probably comes down to the composition of this food. The smell isn't convincing.

The cat doesn't like it anymore and there's only one flavour.