Thanks for everyone's ideas and comments. The trip went well, with the following observations:
Living at sea level, and hiking on the first day from 5000' to 11000', there were some altitude effects--
1) It took several days before I "felt" like drinking or eating as much as I should be. Most appealing, to eat/drink, and which I'd brought almost none of, were sugary drinks, like powdered lemonade or Gatorade. I think now that if I'd had more of those, I would also have eaten more than I wound up eating. For several days I wasn't eating more than a 1100 calories a day, and wound up losing about 10 lbs. (Starting weight ~170). (This was measured after drinking several bottles of various drinks as soon as I got back to civilization, so couldn't have been all water loss)
2) Salami always tasted good. A little more hassle, but also good, were crunched up corn chips, followed by wheat thins. For a prepared meal, reconstituted hummus powder with dried parsley and as much olive and/or avocado oil as it could absorb, on a tortilla, was appealing. Not very appealing, for some reason, were the myriad kinds of nuts I'd brought along, though I eat/enjoy a lot of nuts at home. The most successful nuts were pistachios and cashews, followed by almonds, pecans, and very distantly, walnuts. Of dried fruits, Trader Joe's "Just Mango" was a favorite, with, surprising to me, dried cherries and and Sultana raisins less so. Though I'd had a good trial experience with quinoa flakes at home, it was a bit of an effort to eat them on the trail, whether sweet as a cereal (with Sultana raisins and powdered milk) or savory (with olive oil and dried parsley). Chocolate was appealing, but in small doses.
3) Things I wish I'd taken: sugary drinks, powdered tomato to flavor the hummus and supply vitamin C, more tortillas, marmalade, pine nuts.
I think in summary that for several days my body wanted the simplest carbohydrates possible, though surprisingly it seemed to appreciate the salt and fat of the salami.