In reply to Hans:
Remembered a couple of others while out today,
If you roll out a pack of marzipan and add chopped nuts, dark chocolate, seeds, dried fruit (basically whatever you like) and knead it all together you get a log of awesome which does snacks for several days. I can't stomach it when I'm not on the hill but I now make a big batch at the start of winter and take a slice off, pocket the slice and that's all my days hill food - works really well.
+1 for smoked sausage, similar to the tuna packs for adding some protein which helps you recover over multi days and stops you waking up hungry.
NEVER try and cook porridge directly in a jetboil. You may get away with it once or twice, but when the porridge gods turn on you you will never get your stove back. If you cook anything in the jetboil (generally ok with really liquid stuff) then DON'T leave a spork in there. Nothing puts you off your dinner like melted plastic. Also, don't believe the people in the shop that assured you that the neoprene can't catch fire. It can. Furthermore, don't trust the piezo lighter when cooking in the wet, like a mini electric fence.
Having said all that I think you'll be fine with a jetboil, mine's just had a fairly rough life. Trust me on the porridge.
Back to the question in hand, if you don't mind cleaning your pans then a few supermakets now stock a brand called "look what we found" that do posh bagged meals, they're pretty good and way cheaper than camping food although they contain their liquid so quite heavy.
Cherry pie filling plus broken biscuits/scones/anything doughy is an awesome camping pudding.
If you don't like eating trail mix at home, you won't like eating it on the hill!
Malt loaf is excellent unless you drop it in the sea.
I recently met the concept of stromboli, like a rolled up pizza bread dough full of cheese and whatever you like, they're properly durable to have in your bag and taste awesome (if you're any good at cooking).
Making your own Popcorn is a good morale booster on anything expeditiony and it's actually prety good for you.
I take those dairy-stix you sometimes get on trains for tea, they're easily tough enough to not break in your bag and are much nicer than powdered milk.
If you're going for a few days you may have to accept that some of the meals aren't going to be particularly apetising. I find it helps to have a few treats, which I inevitably regret eating on the first night.
Thai curry paste livens up even really crap food.
A great way to find new ideas is to set off with no food and see what you can find in the newsagents/rural corner shop.
I know that when it get's really bad, I still have a dehydrated beef stroganoff from my very first Duke of Edinburgh practice that I keep in my first aid kit. I'm scared to eat it now, as I'm worried it's like samsons hair and when I finally have to eat it bad things will happen. Probably food poisoning from eating an out of date dehydrated beef stroganoff.
Hopefully some food for thought. Trust me on the porridge.