Impressive 10-K! But I gotta ask, do now feel you are in the ranks of the ultra-light?
I understand the no-cook dilemma, at least in concept. Have you given any thought to using certain dehyrdrated meals which do not require hot water? Some dehydrated foods will re-hydrate with water at room temp, it just may take longer. Try out what you may like before hand to determine which may or may not work and how long it takes to rehyrdate. You could add the water sometime after lunch and then it will be ready for dinner. May lighten your load a little; trial and error may figure it out.