You don't need to be an immigrant. Vegetables are cheap in UK supermarkets.
1kg carrots - 39p https://groceries.morrisons.com/products/morrisons-carrots-2...
2.5kg potatoes - £1 https://groceries.morrisons.com/products/morrisons-white-pot...
And so on. Vegetables are cheap. It's frustrating seeing people complain about food but not learn to cook. Making casserole is cheap.