Imagine if you have like a tenner for food for a few days. Send your lass out expecting her to come back with pasta, tins of tomatoes, potatoes etc. brings back 20 bags of sweet chilli and baked ham flavour Crunchlets
There will be a parallel thread on Facey where someone is hypothesising (negatively) about their lass coming home with pasta and tomatoes. You can make a topper arrabiata for three people for less than £3; likewise, many other pasta dishes.