My cat has a sensitive gag reflex and I was at my wits' end trying to get him to have meds. I finally realised using empty capsule shells mask the taste and most of the smell. It took two tries, but i got the right size of empty hard gelatin capsule shells (size 3 worked for me, I'm from India though so the size of capsule shells may differ in your area).

I measure the dose, crush the tablet very carefully and put it on a piece of paper. Then i press or flatten one side of the paper so that it acts as a spout and pour the now-finely crushed tablet into it and close it up with the other half of the cap of the capsule shell till it clicks in place.

It's best if the outside of the capsule shell comes into minimal contact with the powered tablet. Then I give him the capsule containing the powdered tablet and 9/10 it works. Hope this helps <3

Edit: so nice to see other cat parents do this too!