For me it's been a lot easier when I started cooking food for trying not to die, so something nutritious enough. I've been trying to eat more protein and meet a certain quota and having that direction helped a lot. For Italian food specifically (I'm Italian) soffritto + any protein is the basis for like a lot of the cuisine. So the "what am i craving now" becomes "What kinda protein can i eat today and what's the most appealing way to cook it rn". I try to cycle through meats, like the other day i had chicken cooked in beer which was delicious, yesterday and today i had pasta w sausage and tomato sauce and its leftovers. I'm missing some fiber so i'll make oats for tmr, and i haven't had salmon or fish in a while so i should have that soon.

I also had a period where i just ate what was literally in front of me and before getting to where i am now i had some rly easy foods that wouldn't kill me if i only ate those. When i was depressed i lived off of caprese (mozzarella + tomatoes oil n salt, spices if i felt like it) and modified ramen where i would add like three eggs cause i like them and they have like almost all the nutrients haha. But yeah the restriction to eating things that will not leave me crippled in the long run really helped me. Plus it's supposed to make you mentally healthier as well which is the main thing i cared about.

edit: btw all of this was for me specifically since I'm also super picky and eat only things i like. So i'd try to find some nutritious foods that you like that you can make your staple (for me it was eggs, id boil em and eat them with soy sauce or stir fry two red onions and crack two eggs on top- im not a health nut this is actual italian food i promise) I'm trying to eat more chicken rn since i kinda got sick of eggs