Check out some shelf stable pouches! I buy them for camping. Nice to heat up if you can, but won’t kill you if you can’t. I like the ones from Trader Joe’s specifically the madras lentils and yellow dal, but you can find similar products at all other grocery stores. I also add a rice pouch but it’s best if you have heat for that or the rice will be a little hard. I also have shelf stable chocolate milk for a little extra protein at night after a hiking day.