Putting it bluntly, if someone is experiencing financial hardship surely the most economical meal must be one cooked at home and not purchased from a "takeaway".
I give the example (using prices gained from the internet) - for one person a large fish supper costs 6.70 (smaller serving 5.40), a "pie and chips" 4.30 (large) or 3.60 (small). For a couple, simply double these prices (13.40, 10.80 for one meal). Whilst not attempting to do any direct price comparison, the offer of a meal for two at Marks & Spencer, which this week includes a chicken (serving three to four), a vegetable dish, a dessert and a bottle of wine all for 10 seems a far better, far healthier and more sensible option.
For two people, the chicken is of a size which would be sufficient for two meals with its carcase providing the stock for a soup, which would result in at least three servings and a sweet being sufficient for two servings. If you do not over-indulge, the wine would be sufficient for two people at two meals. So please tell me, given the above comparisons, how "people on limited means" should spend their money wisely?