For two weeks, I'll spend £40-£45 (50 max), which includes the bulk of my food such as meat. I'll freeze most of it. I'll then do the odd top up during the week for things like milk or peppers, stir fry – stuff that doesn't last too long. I'd imagine I roughly spend £30 a week, which sounds about right reading others' comments.
I'd strongly suggest online shopping (such as mysupermarket.co.uk) because it generally forces you to plan out your meals and literally buy what you need. My cupboards and fridge/freezer are 99% empty before I shop again, as I literally try to use everything up first. Not so practical for families, though, I know.
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