My daughter introduced me to "hippie pasta." Pretty good; start with pasta, boil it, add vegetables (fresh, frozen, or canned) to taste, add a pack of chicken or can of tuna, and some cheese or Velveeta. Vary proportions of ingredients to taste. Maybe substitute rice for pasta. Plenty of cheap calories in pasta or rice, more than you'll get from the freeze-dried meal. Finish off with an apple, or a pint of blackberries or cherries.