I am honestly astonished that food bills could be so high for 'everyday' food (and I use 'everyday' with reservations, especially on this thread!)
Obviously I know that one could eat caviar and fois gras every day and spend far more than that. But for plain, day to day cooking, with meat, fruit and veg, plus staples like bread and pasta/rice etc - £200 a week? What on earth are you spending it on, tbh? (not harshly meant, just incredulous)
I can't buy from most aisles in the supermarket due to allergy issues. This knocks out a lot of crisps/biscuits/other stuff, but then these are hardly essentials. And it does mean that for eg, if I buy curry paste, I have to buy stupidly expensive ones (I need it dairy and gluten free, and to be able to take it into school, it also needs to be nut free. A small jar of paste is around £3). A typical days food here is:
cereal and toast for breakfast (might be an expensive free from cereal, or for the rest of us, porridge, but with dairy-free milk, so that bumps up that price too)
lunch is usually a hot meal (gluten free bread is expensive, and tends to be rank), so eg curry or spag bol as per recipe I posted earlier. plus fruit (at least 2 types of fruit). we sometimes have pancakes (gluten/dairy free, so using 'expensive' flour and milk) for pudding. or homemade cake or biscuits (but these are rare, or around birthdays etc)
dinner is the same.
when the girls are at school, my lunch is more typically a quick sandwich.
so, even on 2 hot meals a day I cannot conceive of spending that much on food alone. seriously, if that is your food bill alone, then what are you spending it on? and how much actually gets used?