Keto lunches that require no heating and can be left unrefrigerated? Hi all,

I work outdoors in remote locations about 75% of the time.  I'm looking for some kind of keto compliant lunches that I can throw into my backpack on the go, and then eat without having to heat it up.  I do frequently have an ice chest to keep things cool in, but really whether or not I have a cooler depends on whether I'm able to drive up to a work site, or if I have to hike in (not gonna carry it three miles through the woods).  Past go-to lunches included things like cold Israeli cous-cous salads, lots of PB&amp;J, or bags of oranges.  

Any ideas to help out non-office dwellers?