Sorry pulses are just another name for types of beans (Legumes) that grow within a pod WIKILINK. Though generally disavowed I still like the old theory of eating the grains and beans that occur naturally at the latitude your from as your ancestors adapted to them. Beans and grains are very filling and generally fairly slow release in nature nutritionally - so keeping you going. Indeed some legumes like field peas were eaten to suppress appetite in hard times. Can make you a bit "gassy" but let the wind run free, where-ever ye may be!
Not a fan of convenience food per say, but that doesn't mean you have to eat pre-packed trash, just tailor the food to conditions and fuel limitations and that makes it convenient. Indeed quite a few folk have said that my mate Belzeebob and I eat better in the field than they do in the house.
There's a great book called Moveable Feasts LINK that's filled with some of the ideas that took years of planning and failures that my mates and I made and throws them out of the window so you don't have to make them, really good for backpackers and outdoors folk in general.
Food and fire are a great moral booster when outdoors. Indeed especially on winter trips when the nights are longer I used to always eat with chopsticks as it took slightly longer to make the meal more enjoyable. (Can eat just as fast these days!)
With a bit of forethought, kit and knowhow there's not a lot you can't cook outdoors as indoors. (Though Dutchovens, Cobbs and the likes are maybe a bit of a lug for the lightweight alpinist!)
Thats tomorrows dinner sorted then.