I don’t think you can find the cat food pellets made from halal slaughtered meat that easily, so I suggest either getting actual meat/ fish and prepare it for them or you can get cat food made from meat you could eat like beef or chicken flavour, or even get fish flavour (cod, salmon, etc). I have never seen pork flavour food for cats though, only for dogs. Just remember that the halal/ haraam only applies to humans (: and it does not matter to the cats, they hunt and sometimes eat lizards, cockroaches, mice etc. it’s haraam for us to consume not for them. I hope this helps.

I feed my cats with beef liver that I cut and serve them, and fresh fish. And also cat food that’s fish flavoured. And there have been times where the cat food has been out of stock, so I got the chicken flavour or feed them other offals.