I'm all in favour of proper food. I'd rather bob down the local supermarket and spend an hour cooking and drinking together than live with bad food. Need to find a small pressure cooker BTW.
You can get some decent kits or make up your own to make a decent curry, chile or Tangine. The kit is just packets of spices you add to flavour dull but quick to cook easy to buy chicken or mince. Basically fry an onion and the meat, add spices and water. Cous Cous is the great alternative to rice, tip boiling water on it and leave for 5 minutes. The kits flavour the cous cous for you too. Pasta twirls are easy too and the dried stuff is way lighter.
The better sort of boil in the bag works well. Wayfarer meals are Ok but expensive, but my favorite is straight off Morrisons fish counter, Moules Marrineirs

For a one nighter I like to bring frozen stews, Beef burginion, Ghoulash, coq au van, meat balls that sort of thing frozen on a box. It defrosts while you travel and just needs warming up. Just have to remember to put the box in a bag and not straight in with my clean clothes

Rallyburgers are just depressing, always remind me of my last bet on the 3.30 Kempton

Andy