Why is the combination of foods in the full English breakfast what it is?

by mowshowitz

Why mushrooms? Why fried tomatoes (a preparation I've never quite seen outside the confines of this meal)? Why those canned beans? Why that hockey puck of hash browns? It's a pretty tasty meal but its makeup seems to be, simultaneously, so unwaveringly rigid and so random. I figure there has to be a reason why.

schematicboy

You may have better luck obtaining an answer if you cross-post to r/AskFoodHistorians.