Same thing here. That's pretty much all our cats are given - Fancy Feast classics - the pate varieties. They love
chicken
ocean whitefish and tuna
I supplement with cooked chicken that is diced. And Little Dude still gets some crunch. I like the fact that FF has 8 or 10 varieties, and each can is pretty inexpensive. I try to ensure each cat has a little fat on them. That takes them through the problem times. Little Dude got in an outside fight a few months ago. Summary is that he was at the vet for 10 or 12 days and wouldn't eat until the last 2 days. So he lost a lot of weight. So some extra weight can be good.