Food Egg in the Hole Portobella Mushroom. Posted by hotdogla on July 24, 2013July 24, 2013 The egg in the hole portobella mushroom. This idea came to me when I was walking past The Figaro Cafe in Los Feliz. But instead of using bread what if I used a portobella mushroom. Well I did it and it was delicious. Sharing is caring darling. Pass it on.TweetEmailPrintLike this:Like Loading...