250-300 a week here for 2 adults, 2 kids.
We have takeout once a week and a cheapie meal (ie eggs on toast) once a week, we eat meat and veggies with every other meal and I only buy premium cuts of meat.
We do eat processed goods like jatz crackers, rice crackers, fruit bars etc but my kids both eat 2-3 pieces of fruit a day, I think fruit and veg is more expensive than crappy foods
I do buy in bulk toilet paper, dog food etc
The only way I could see us cutting back on costs is to buy cheaper cuts of meat, have meat free meals and bake all our snacks but I can afford it at the moment so won't change anything at the moment.