Mmm...split red lentils. So tasty!
Legumes and grains react very well to a good pre-soak.
Another thing that my boyfriend and I recently discovered on our cross-country bicycle trip relates to spaghetti:
We would boil a pot of water, put in some spaghetti (I prefer the thin spaghetti - capellini), put out the flame, cover, and let sit for 7-12 minutes, depending on the thickness of the noodles.
Essentially, you only use your fuel to boil the water, then put out the flame, save the remaining fuel, cover the pot and let it sit for the given times.
After a 80 or 90 mile bike ride, this became the ambrosia of all ambrosias!