Cats can be so funny about their food!
I feed my 2 mostly dry Iams (hairball formula). ONCE-in-awhile they will get canned as a treat. When I took them off their canned stuff, they did not like it at first, but adjusted after a couple weeks

Sometimes we have people-food I think they will like as treats.
Last night we had FRESH shrimp, so I called both of them and gave them one each. You know What? They both sniffed at it, then looked at me like "yuck!...........what are you giving me this for?"
But if I get the hotdogs out, they go nuts!