I use my slow cooker a lot. Everyone on my FB know at this. I have a Phillips Air Fryer, too, bought a couple of years back that is very good and energy efficient for making homemade chicken and fish bites, chips, fish cakes, etc.
We live rurally, going to Aldi or Lidl sets you back a good 20 quid, but is worth it if you go once a month.
Having things like a chest freezer, a slow cooker, the fryer and even a camp stove and fuel in especially lean times and knowing what to do, however, does go a long way.
I just snacked on spinach leaves, chopped tomato, croutons made from stale bread and homemade vinaigrette, but I can see where a bar of chocolate might be more appealing and cheaper.