In Julie Child’s Menu Cookbook from 1978, she speaks about how French bread “begs to be cooked this way.” Sliced thin, brushed with butter and baked to golden brown, the “croutes” became a hard toasted bread perfect for appetizers. The modern day version is crostini, toasted sliced baguettes used for popular plates like Bruschetta and mascarpone, prosciutto and fig on crostini Hors d’oeuvres.
For this recipe I’m taking a cue from Julia:

“Suppose the boss is coming for dinner—a formidable personage whom you want to impress and whose taste in food runs to the conservative. What to serve? For someone like that I immediately think of beef.”

This recipe for Filet with Sautéed Mushrooms combines the use of beautifully baked toasts sprinkled with grated cheese and then topped with thin slices of flavorful filet topped with a small mound of sautéed mushrooms and onions. If you invite your boss to your next party and serve up these, you just might get a raise!
(This is a great summertime light meal and all steps can be made ahead and assembled when ready to serve. Serve mushroom mixture warmed.)