I eat meat… As lean as I can manage as fat adds up like crazy there… (But I have eggs and even dairy, I just seriously limit them now especially dairy.)
There is no amount of fat I could possibly need that I couldn’t get from my meat alone. Or crunchy chicken skin My scratchings are meat as I like them meaty. But they are fatty alright. I like pork belly and pork jowl too. I don’t like pure pork fat tissue but many people do here… One doesn’t need high protein just because they get their fat from meat… I can imagine getting very fatty meat isn’t super easy everywhere though. And of course, there is one’s taste…
So I don’t know miracle food, just fatty meat… And eggs/yolks But they are protein rich too. Still helpful if you need a quite high fat percentage… But you need to eat many a day to make a real difference. And that’s a significant amount of protein too. Eggs are good for getting 65% fat (I try to eat that lean, well even a tad leaner but it’s so very hard for me as nearly everything I like is so fatty and I desire fat so much), a bit more if you use some added fat and/or more yolks… But if you go for a way higher percentage, you need some other ally too.
Good luck! I can’t control my fat percentage, I end up in the same very small range almost every day, almost no matter what, it’s some balance for my body or something. But my protein intake is always feels good so there’s that.
Oh yes, eggs with sausage and whatnot (I usually use sausage, some smoked pork, some lean pork to balance things out, it would be too rich otherwise, your broccoli can do the same, cheese and finally sour cream on top). It’s easy to get fat (and protein) into me But it satiates me fine (I can’t eat more that 3 eggs this way so I still need meat to get my calories but when I only need a small meal, it can do the trick).
I wonder why you get hungry so soon, maybe you ate too little? But you say you can’t eat much… IDK why that is… Maybe it’s temporal, maybe you just don’t want it enough but some snackier item could help…? I saw some others wrote about that option, it may be useful now and then. I banned fat bombs as I overate fat without them already but I still had a few nice recipes I preferred them savory, some prefer them sweet… Whatever to get your fat! And fat bombs are more like fatty, not so very protein rich, just what you seem to need!
I don’t know how much carbs you eat and what it does to you but as @PaulL wrote, they can mess with your satiation. We aren’t the same, it may or may not be a problem, I experienced that many times (only the non-animal carbs were the problem though), even on keto. So if you get okay looking macros and you still are hungry, maybe the carbs are an important factor. Maybe not, maybe you have not the right fat and protein sources or your timing is off or sleep or stress or zillion other things. But as you wrote about eating too little fat, it’s probably your problem. Or one of them. You need enough energy intake and enough satiating food so you do right, focus on fat and you will see if that helps enough.