We are about to go on a 3 night walk with our boys (aged 9 and 12). I'll post more about the walk itself later on, but for now....here is our food plan. Yep, it is a bit fruit and veg deprived, but I figure that it is only 3 days. Unfortunately both the boys dislike dried fruit. I would add dried apples, apricots and sultanas.
The food that I take on our hikes are fairly lightweight but don't include the dehydrated meals that you buy in outdoor stores (bc I still haven't found one that everyone in the family likes). Most can be bought in a big supermarket, although I often get dried mushrooms, dried fruit, dried veggies, tuna pouches etched at Harris Farm Markets or local gourmet or health food stores (About Life in Rozelle for eg). Also, we are only camping out for 3 days, so need to pack light, but not super-light.
I aim for 1kg of food per person, per day. I find that this amount is usually spot on.
Breakfasts
Muesli - (homemade oven-baked granola)
Powdered milk (powdered skim milk is nicer than full cream, oddly enough)
Oats and brown sugar for porridge
Protein bars
Wraps & Nutella
Lunches
Wraps
Small jar of nutella
Laughing Cow triangle cheese
Hans Danish salami
Small jar peanut butter
Salmon pouches
Toasted sesame seeds
Fresh fruit (apples, oranges) for day 1
Dinners
1. 500g 6 minute pasta (mini penne) with pesto and parmesan
Lunches
Wraps
Small jar of nutella
Laughing Cow triangle cheese
Hans Danish salami
Small jar peanut butter
Salmon pouches
Toasted sesame seeds
Fresh fruit (apples, oranges) for day 1
Dinners
1. 500g 6 minute pasta (mini penne) with pesto and parmesan
2. 2 minute noodles with salmon (1 pkt noodles each and 2 pouches salmon between 4 of us) with cow cheese and toasted sesame seeds
3. Cous cous - made with stock cube/water; with cashew nuts and dried mushrooms tossed through; tuna fillets (1 pouch each) on top and scattered with toasted sesame seeds
Drinks/extras/snacks
12 hot chocolate pouches (or good powdered hot chocolate in a zip lock bag)
8 chicken soup pouches
tea bags
coffee
3. Cous cous - made with stock cube/water; with cashew nuts and dried mushrooms tossed through; tuna fillets (1 pouch each) on top and scattered with toasted sesame seeds
Drinks/extras/snacks
12 hot chocolate pouches (or good powdered hot chocolate in a zip lock bag)
8 chicken soup pouches
tea bags
coffee
Chocolate
Protein bars
Nuts
Snacks. One bag per day for all of us. 
E.g. Of a lunch bag. Each morning I would move the PNB, salami, extra wraps etc to the next day's zip lock bag. 
Dinner 1 - mini penne with pesto and Parmesan. I dispense the pesto from a jar into a lightweight plastic container. 
Dinner 2 - noodles, cheese, salmon with toasted sesame seeds 
Dinner 3 - cous cous, tuna fillets, dried mushrooms, stock. Next time I would add some sort of sauce bc it was s bit dry. 
Breakfast eg - porridge, brown sugar, milk powder. 
