Carluccios do one of the best out of home brekkies.
But for a genuine English Breakfast, key ingredients for me are:
Bacon x n
Sausages x2
Fried egg with lace crispy bit
Fried tomato halves, one, maybe two.
or tinned tomato “dip”
Toast, buttered
Beans, a must have.
Mushrooms, not too greasy (Caluccios do awesome mushrooms).
Hash browns are a bonus and black pudding is ok if good, but normally poor quality.