£180 isn’t much for 6 adults. Especially as you won’t have any store cupboard/freezer items.
You’ll need nice cereal, croissants, nice bread, bacon, eggs sausages mushrooms tomatoes, coffee tea juice fruit, hot chocolate
Breads, cheeses, charcuterie, pickles, tomatoes, cucumbers, humus, dips crisps, pastries, soups
dinner could be anything really, a nice prawn/fish curry, or chicken breast tray bake, plus
Then some nice snacks, chips and dips, nuts, chocolate