https://en.wikipedia.org/wiki/Pemmican
I think it's finally time we add pemmican and some other hardcore energy foods.
Pemmican is considered the original survival/energy food and consists of many thing we have ingame already.
We could add the ability to dry regular meats on drying racks and berries and fruits on a herbalist table, mix it with rendered fat and create a very low hunger/low fep extremely high energy food.
Allowing dried meats would obviously open the door for jerky, and I'm sure died fruits would have other smart implementations as well.
Other things to consider
Hardtrack
Hoosh
basically just looking for a new top-tier energy food, the FEPS are not important here