I've still got grub on a grant. (And use it!)
I lived a lot on variations of mince - spag bol, chili, lasagne and cottage pie!
I also ate lots of pasta with Cambells soup sauce or pesto. For extra nutritional value I used to stir in frozen veg (ie. peas and sweetcorn).
I still, despite a high paid job and waitrose habit, eat stuff like that regularly (although I've lost the cambells soup habit and tend to buy filled fresh pasta to go with the pesto).
Even now I would balk at 22quid for a curry. I did a dinner party recently and fed 8 people 3 courses for about 80 quid and no one complained (homemade tomato/ roasted pepper soup, salmon, cous cous and veg followed by pavlova).