Long before any hunts start, I take left overs from dinner and wrap them up in a tortila then wrap that up in plenty of heavy duty tin foil lable them with a sharpie then stick them in the freezer. Then say i am going on a ten day Elk hunt i grab 20 or so of them and put them in a cooler, That way i have two per day for lunch.. I also will cook up a couple dozen scrambled eggs a few pounds of bacon/sausage toss in some cheese and salsa wrap them all up freeze them for later use..
Just about anything you can wrap in a Tortila will work,,They will take a pretty good beating and will still be in good shape when it comes time to eat them.
When i am on the mountain and take a break i just build a little fire and toss it on the coals, Turn it a few times,In less than ten minutes i have a great hot lunch burrito, Like roast beef with a few spuds and carrots maybe a little cheese in there..
Trioxane bars work great to cook them also if you dont want a fire. Just dig a little trench in the dirt about 6 inches long
and about 1 inch deep then set a couple small rocks on each end of the trench, So when you set your burrito over the bar to cook it, it is only about 1 to 1-1/2 inches above the bar..
When you use the Trioxane you have to turn it about every 15 to 20 seconds cuz they burn hot..one bar is more then enough to cook one burrito..
I use the heavy 18' ten foil and use plenty so no smoke or fumes can get in, and the 4 or 5 inces that are left over on each end make great handles for turning it over and not branding your fingers.. I always try to have a couple dozen in the freezer, I grab them when i go fishing, Bird hunting or just
where ever..
It saves a bunch of money, Its convinent, And you can make em as healthy as you want them.
They also come in handy when you get back to camp late and to tired to wrestle with the Dutch ovens.