Had a try at this self catering camping last night. Took the motorbike, so weight wasn't so much of an issue. Headed down to the Solway coast near Kirkcudbright, and camped at Brighouse bay. £20.50

for a space in a field! I was expecting en-suite facilities and a team of butlers to erect my tent and cook my dinner for me. Alas, the bogs were 5 minutes walk away and cooking was down to me, as was erecting the tent.
I had stopped at a Sainsburys en route, and deciding to keep it simple, bought a packet of dried Batchelors mexican chilli, and a tin of new potatoes. Well what can I say but it was dross! If you must sell such tasteless crap, Batchelors, at least add some extra hot chilli powder so that we can't tell. This was some bland soya nonsense which had a cheek to call itself mexican chilli. Thankfully I had taken some home made lentil and bacon soup too, so I survived.
All part of the learning curve.
So next time I have to make some more effort and carry some better ingredients, in line with the advice given on this thread.