I did a lot of 'venture' hiking with the Boy Scouts. The main requirements were the food had to be light; (we were carrying everything in our back packs) easy to make; (a kid could do it) and something they'd eat! This was one we came up with for a breakfast. it's hot filling and sticks to your rubs through a morning of hiking. It's a 'one pot' so adjust servings accordingly.
Instant mashed potato flakes (get the ones that use water only, it's easier to carry)
Sliced Pepperoni
Shredded cheddar cheese
Put desired quantities in a coffee cup.
add hot water and stir (If too thin, add more flakes if to thick, add more water)
eat
It got it's name from my sister, who's kids were fussy eaters, and would always ask: "What's this?". I got the same questions on the trail with the Scouts.