How to get rid of ants without using poison?

So there's ants getting into my house and they're strongly attracted by the smell of the cat food. I tried putting it on a tray which worked for a couple of days but they've figured out how to get on the tray. Most sources online say to use ant powder or other chemical/poison products to eradicate ants but I obviously don't want to do that because of the cats. Has anyone else had this problem?