RustyHinge wrote:
Make toast or fried bread, lay the mushrooms on it, cover with sauce and
give it a short blast in the microwave.

What's the microwaving for? Surely everything is already hot from having
just been made?

How quickly can you turn a roux into a sauce?

Dunno, but I would put the toaster on whilst it was making rather than before,
I think. Sounds nicer than microwaved cold toast, anyhow. I find that tends
to go a bit hard. (I'd probably just eat the toast cold - I have no problem
with lukewarm food)