£60ish a week for the main shop, 2 adults, 2 teens, for food, cleaning products and toiletries.
But...
Children have cooked lunches included with their school fees
I bulk buy meat online (included in the weekly estimate)
I'm an avid yellow sticker shopper, with a huge freezer
I'm a creative cook, taught by a war-time mum - leftovers (from the cooking dish, not the plate!) are used to make another meal/soup/reheated for lunch etc.
We are happy to eat vege meals frequently
I meal plan
I use Aldi selectively, and stock up on their good staples
No fussy eaters or dietary requirements in the family.
We are all happy with own brand shampoo/shower gel/washing powder etc
I use value products for some items (bin bags/dishwasher tabs/toilet roll etc)
I'm not including alcohol (bar an occasional bottle of wine) as I mostly bulk buy that from Aldi.
I'm not including pet food for the 2 cats, again bulk buy, I think perhaps £40 a month? Maybe less.
Might perhaps top up milk, bread and fruit during the week - no more than £10 ish per week.
Maybe a takeaway once a month £30 ish? and occasionally DH and I go for dinner £50ish (but prob less often than once a month).
Hard to find a final absolute figure, but probably around £80-£90 a week all in including eating out etc.