try these tips
use LEAN ground meat. I stay away from beef and usually go with lean ground turkey, or ground elk/venison if I have it.
I have tried using canned chicken breast and it did not turn out well, so i now stick with ground meat.
Cook the ground meat, breaking into small very small chunks.. once cooked, put into a colander and rinse under water to remove as much of the remaining fat as you can, then add back to whatever you are cooking to add spices etc.
I do this when I make my chili mac and have never had a problem with it not rehydrating well.
What are you cooking that you are having problems with and what is your rehydrating method? With my chili mac or spaghetti with meat sauce I have done two methods of rehydration, both working well; depending on if I am packing the MSR dragonfly or the MSR micro rocket.
With my white gas stove, I will put the meal in the pot, cover with 1/4-1/2 inch of water...let sit for a few minutes, add a little more water if necessary, then bring to a boil, turn stove off, put pot in home made cozy and let sit for 10-15 and I am good to go. I recently tried the freezer bag method with chili mac by pouring boiling water over it in a bag inside of a cozy and let sit for 15 and it was good to go as well.