To feed a lot, spaghetti goes the distance. I like some good brats - if frozen solid they act as an ice pack on day 1. But my favourite.. what makes a good camp out , is breakfast. Eggs scrambled , lots of Vermont maple sausage, all the grease and butter then to toast and perk pot death wish sludge. Soooo good
I've only made pizza this way once, halfway through a week long canoeing/camping trip. but it was amazing. Not too fancy, but delicious nonetheless. A lot of weight to carry for 3-4 days, but a drop in the bucket when you're in a canoe. Heavy rain started just before dinner, so we used the aluminum canoe as a lean-to to protect the fire:
Homemade tomato-based sauce dehydrated into a flaky powder and reconstituted on the day using filtered lake water
Dehydrated mozzarella similarly reconstituted
Store-bought, pre-made crusts
Pepperoni
Baked over coals on a wire rack (no direct flames)