No cook trail meals can make great lunches, an easy meal in bad weather when backpacking, and also they have been extremely popular with long distance hikers looking to save weight on fuel. They also are great for road trips, car camping, even in hotel rooms when traveling. None of the recipes require a stove or heat source.
No Cook Method:
Pack your meals at home in a snack, sandwich or pint/quart freezer bag (whatever you prefer). Note the amount of water on the bag in permanent marker and what the meal is or tuck a small note inside.
Depending on the recipe rehydration will be nearly instant to up to 30 minutes. Add in cool water, seal the bag and knead or shake gently. Set aside till ready.