Bit of a staple in B&B and 3 star hotels. It's actually more rare to find proper fried mushrooms - although we usually use button mushrooms. Portobello mushrooms only started appearing about 15 years ago.

My mother had to contend with a husband who liked meat and two veg, and who would complain if she used things like herbs because it would mask the taste of the meat and two daughters who didn't like meat and two veg and all while working. All in all, she didn't do too bad - but her weak spot was the number of times the potatoes were burned. The taste of semi burned (i.e. ones which could still be removed from the bottom of the pan, so could still be served) still haunts me.

Now she has retired, her cooking is a lot more adventurous, but she still burns the potatoes...