a couple chunks of beef liver, beef heart, chicken thigh w/ bone, mixed in egg yolk & a couple sardines...
He's turned into a grazer lately (after I accidentally left food out a little too long one night, perhaps also due to the sudden heat) and now he doesn't eat as much as he did in one sitting but will return within a couple hours to finish the rest
-- this makes my life a living hell now, as I don't feel comfortable leaving raw out without serious risk of it spoiling (especially with how hot & humid it's been lately)... yuck.
So, I went out and bought a couple cans of Wellness to mix in to encourage him to eat more at sittings. It hasn't really helped. He eats the raw chunks out of the food, so I know it's not a sudden aversion to raw. I honestly am clueless how to get him back on schedule and don't feel comfortable with the "starvation method".
I had tried a new recipe this week, that strongly smells of beef liver. I hate the smell, and I'm pretty sure that's what's turning him off, too - so I will try a new batch of the old recipe and will see if this behavior improves.
ETA: Other sites have said it is quite normal for cats to "slow down" in especially hot/humid weather and as long as he's still eating, he's fine. He still plays normally, uses litterbox normally. Today we had slightly better weather (less hot/humid) and he ate normally - go figure. Still plan to go back to the old recipe this weekend when I make a new batch of food.