a steak cut of beef taken from the smaller end of the tenderloin, or psoas major of the beef carcass, usually a steer or heifer

Filet mignon is a steak cut of beef taken from the smaller end of the tenderloin, or psoas major of the beef carcass, usually a steer or heifer.

a tender and expensive cut of beef

Filet mignon is a tender and expensive cut of beef.

just a cut taken from the smaller end of the tenderloin

The Filet Mignon is a cut taken from the smaller end of the tenderloin.

a steak that’s cut from the tenderloin of the cow

Filet mignon is a steak that’s cut from the tenderloin of the cow.

one of the leanest and therefore most tender cuts of beef

As noted, filet mignon is one of the leanest and therefore most tender cuts of beef.

just a fancy name for a beef tenderloin steak

“Filet Mignon” is just a fancy name for a beef tenderloin steak.

both the leanest and the most tender steak

Cut from the supremely tender and mild tenderloin, filet mignon is both the leanest and the most tender steak.