My favourite is savoury mince. I dry minced beef and some cubed boiled potatoes, then dry some tinned peas, sweetcorn and baby carrots that I've chopped up. Canned veg rehydrates more easily than frozen I've found because it's cooked in liquid in the can. After rehydrating it's firmer than tinned veg usually is, which is a good thing. I generally find it a bit soft straight from the can. I have an Excalibur machine so it's easy to do big batches. I can dry a whole 5 kilo bag of potatoes that have been boiled in one batch. I measure portions of the beef, spuds and veg into a baggie and add a bit of dried cabbage, herbs and anything else I fancy. When I need to eat I bung the lot in the pot and cover with water. I bring it to the boil and simmer for 5 mins, then add a package of decent instant gravy (the kinds that need a couple of minutes of simmering are usually better than the just add water kind) and simmer however long the gravy needs. I add some black pepper and bung it in a pot cosy for 15 minutes but you could just simmer it a bit longer. For a bit of variety I sometimes add a sachet of mustard or mint sauce. It really hits the spot every time.
I also dry baked beans in large batches. I put the lot on the hob and add brown sauce, balsamic vinegar, black pepper and heat it through until the beans have broken down a bit. This helps them rehydrate later. I throw a portion in the pot with some chopped up salami, or if it's the first day out I'll use bacon.
Both these recipes are fantastic with a chunk of bread or bannock and you can keep the last chunk for wiping the pot semi clean.