Easy and yummy.
This is basically the same process I used with the fried broccoli--dip into beaten egg, bread crumbs and fry in vegetable oil. I made the bread crumbs from ciabatta bread. By toasting them after the first go round in the food processor, I could reprocess and get a finer crumb.
I used "Baby Bella" or crimini mushrooms. Marcella's cleaning method worked well. They're washed briefly under cold running water and dried on a soft towel.
Then the assembly line:
Add salt after frying and eat em' up.