I would love to know what, if you spend £50 a week for a whole family, you actually cook and eat?
On a weekly basis I buy meat or fish for about 5 or 6 days. We try to include oily fish each week, lean free range chicken, red meat once or twice, etc. Veg for every meal as well, rice, potatoes and pasta, a big bowl of fruit, yoghurts, milk, juice, snacks etc. I also buy things for our lunches in the week eg tins tuna, ham, cheese, bread, soup, houmous, butter, etc. I always buy salad stuff like cucumber and tomatoes for lunch and snacks. Then there is washing powder, toilet rolls, hand wash, toothpaste, mouthwash etc. Tea, coffee, and a couple bottles wine.
I really feel I couldn't cook the same meals and include the same variety of nutrients on less than half what I spend now.