I almost never take freeze-dried foods. I'd have to buy them on the internet as none are available nearby. Besides, they are expensive. I like the above suggestions (but mac and cheese and ramen noodles are not on my menu--that's all we ate on bp trips with my two sons' Scout troop in the 90's, and I can't face eating them now!
) I like Safeway Select soups in a cup. I think they changed the name of them recently, but anyway they are a house brand of Safeway's. Lentil, black bean, Texas beans and rice, split pea, potato--like that. I get rid of the cups and put them in small zippies. At camp, just put soup into your cup and add boiling water. I bring bagels or rice cakes to have with them. I'm not a big eater, so one of these is enough for me, but for most people one would not suffice.
If you have a food dehydrator you can make all sorts of things. I'm not that creative, although I do have the dehydrator. I just never get around to it. But I'm told, for example, that you can make the spaghetti sauce and noodles and freeze dry the whole thing. Then, very important, for longer storage, you put it into double freezer bags and store it in the freezer. If you don't store it in the freezer it can get funky pretty quick. You can make up a bunch of casseroles and other stuff like this and portion it out into your freezer bags into one or two-portion amounts. Then when you go backpacking take the number of portions you'll need for that trip.