For breakfast I will make some bars before going out by mixing up instant oats, peanut butter, honey, sunflower seeds, flax, and whatever else and wrapping the bars in wax paper and plastic wrap
Lunch is usually something in a tortilla. Get some summer sausage or salami, those babybel cheeses sealed in wax, and some mayo or mustard packets.
Supper is highly varied. Get a starch or grain like rice, quick-cook pasta, dried potato flakes, couscous, quinoa, bulgur, or tortillas(again). To them add spices, seasonings, instant sauces, tuna or chicken packets, freshly caught fish, or whatever you want. This is the outdoors and food prep doesn't have to be a science. There's a wider margin of error because you will be hungry and will eat it.
http://www.trailcooking.com/recipe-home/has a bunch of stuff and the internet abounds with ideas for simple camping foods
