I have never had a sausage and egg McMuffin. It seems far too early to stop serving breakfast, especially for those who don't like to eat first thing. Are there not independent establishment offering sausage and egg rolls? I gather they are well up for a bit of sausage over there.
Baveuse means you add parsley and stop cooking it early enough that the middle is runny.
But the bloke was right, it's still just a f*cking omelette.
Compared to - as an example - eggs benedict, which is a truly exceptional breakfast which Charles would claim to love if it had a French name.
Recently, whilst staying in Riga, I had an even worse egg chef. She would insist on pre-cooking the eggs and forcing everyone to eat cold eggs rather than freshly-cooked. I managed to nick one from the pan whilst she went off for a second but it was a messy business.
You appear to be blissfully unaware that the word is a french vernacular to describe a fanny in a lubricious state of arousal.
No-one actually mentioned a fanny to me WES - it was a joke.