Remove fat from pork and cut into 1-inch slices. Place slices between 2 pieces
of plastic wrap and flatten to 1/2-inch. Whisk the maple syrup, balsamic vinegar
and mustard together. Heat olive oil in a nonstick skillet on high. Brown the
pork medallions for 2 minutes. Turn and brown the second side 2 minutes. Reduce
heat to low, pour maple syrup mixture over pork, cover with a lid and cook 2
minutes. Spoon sauce on top.