Just look at the British food Keith Floyd , James Martin and the Hairy bikers discovered on all their TV programmes.
A very misguided generalisation to say our food was "bereft"
Where else in the world do you get Bramley apple crumble/tart/pie?
Roast beef and Yorkshire pudding?
Cawl.
Cockles and laverbread.
Sewin.
Bara brith.
Teisen lap.
I could go on but bloody hell,
Cullen skink, lob Scouse.........and our ales are world beaters, often copied but nowhere near the quality. Wines believe it or not are rated highly, it's just climate causes problems. Tattinger are growing vines in Kent.
Gins are of the highest quality, scotch whisky, even Welsh nowadays.
We've got a rich heritage that has been swamped in last 20 -30 years or so by poor eating choices due to the surge of fast food restaurants, kebab and fried chicken shops etc etc.
Disposable income is obviously a factor as getting fresh produce and farm reared meats can be expensive and not in abundance.
I think in Britain we struggle for time to traditionally prepare meals plus climate is a factor.
We can't go outside and prep up food like you see on TV when they visit these countries that have 9-10 months of good weather a year.
Give me fish and chips over squid and octopus risotto any day!!
Climate is indeed an issue-traditional food in the UK tends to be on the stodgy side as that's what we can produce. Reliance on meat and root vegetables for most-cawl,scouse, hotpot, Irish Stew are variations on the same theme. Lots of dishes using dried fruit and jams -traditional cakes and puddings. Flavours may differ but German cuisine is not that different .
What is a shame is that we don't utilise fish as seafood as much as we could-with huge exports to Spain and France . Wales is a big producer-Menai is the largest mussel fishery in Europe. Cheap cuts of lamb and beef are largely ignored.
We are now used to fruit and veg all year and seasonality of eating has declined with import and a global food chain(even as a child Strawberries and Cherries were seasonal). Of course gluts were turned into jams and pickles. Whilst I am not suggesting we return to that as the 'hunger gap' of March and April would return when the harvested supplies had run low and new crops were yet to emerge, but there should be a closer relationship to what we eat. Asda should not be able to sell a whole chicken for £2.48