Fruit is the easy one, I dehydrate vegetables for camping, they usually need blanching first. Yogurt leather is kind of fun(just spread the yogurt on the fruit leather liner) you can sprinkle chopped nuts or coconut on top. I also dehydrate precooked meals for camping. On the backpacking web sites they talk about dehydrating tunafish and chicken. You cannot dehydrate raw chicken or pork safely. If you go fishing you can marinate and dehydrate fish. I haven't tried it but they recommend pressure cooking chicken in oil(lard or tallow or coconut oil maybe?) and then dehydrating it. The cooking in oil makes it less tough. I've also seen on the backpackers forums where they are dehydrating grated hard cheese(low temp or it melts), cottage cheese and sour cream. Fatty foods don't keep long without being refridgerated or frozen even when dehydrated, they will get rancid. They will keep long enough to go camping or backpacking for a couple of weeks without refridgeration. I've dehydrated stuff pretty regular for the last 15 years or so.