I spent way more at uni on food than i do now. I have a netto and iceland five mins away. Iceland is actually the best shop ever, there own brand is as nice (a lot of things are nicer) than birdseye, etc.
Iceland is officially awesome, first time i went there i was 'this is gonna come to £20+ easily' and was shocked when it came in at a little over a tenner awesome. And if you spend £25+ you can get free home delivery
Mike