About the only thing I dehydrate any more is hamburger, jerky, and chili beans.  Everything else I can find commercially either in the supermarket or at my local CoOp.  The quality is much better than I could do myself and it is not expensive like "camping/backpacking" food.

For instance my CoOp carries in bulk dried mushrooms, dried peas, dried cream of mushroom soup, tomato powder, dried bell peppers, dried corn, dehydrated refried beans, dehydrated hummus, and many more things.  

They also carry the Just Tomatoes line of products     (You need to Login or Register They make all kinds of dehydrated fruits and veggies.

Supermarkets carry many dried fruits -- apples, mixed fruits, etc, as well as dried onions and others.