Dh buys his lunch for work (school, so 5x days a week for 39 weeks) - averages out to £50pcm across 12 months
I wfh so I tend to just scramble a couple of eggs and put some bread in the toaster, apart from a Friday when I take a morning walk for a coffee and get myself a sandwich at Greggs, across those same 39 weeks - all in, averages at £30pcm across 12 months
During the same term time, dh and I get Hello Fresh for Monday-Friday again for 39 weeks. Averages £140pcm across 12 months
During term time we spend another £40 per week on fridge/freezer/cupboard stuff. This feeds the 2x primary age kids dinner each evening and dh and I dinner on Sunday evening. Saturday is takeaway £100pcm.
School dinners for the kids (school does free breakfast club) for 39 weeks - £80pcm for 12 months.
During the school holidays we drop school dinners/dh shop lunches/my Friday lunch/hello fresh and we switch to a weeks shop for all family breakfasts lunches and dinner. In theory this isn't the 13 remaining weeks of the year, more like 10 as we do trips away etc. So that them averages £85pcm for 12 months.
Toiletries shop is around a tenner a week, so about £45pcm.
Total pcm (I've split costs above to average pcm across the year) £600pcm.
It sounds mental. But we do a lot of short cuts which cost. Eg hello fresh, paying for school lunches instead of packed lunches etc during those 39 weeks of the term time. Holidays very much back to basics. But term time with me and dh both working full time and kids on the go etc, we are paying for convenience.