Preheat oven to 400 F.
Season pork with salt and pepper. With pastry brush, apply mustard to outside of pork.
In oval platter or dish, mix sage and ground almonds or hemp hearts and roll pork in mixture to coat.
Roast pork on baking sheet for 15 to 20 minutes, or until an inserted meat thermometer registers an internal temperature of 145 F. Remove pork from oven and allow to rest, covered, for 5 minutes.
While pork is cooking, in shallow skillet, combine sauce ingredients and cook over medium-high heat until reduced by half and mixture becomes thick and syrupy. Set aside, keeping it warm, but not hot.
To serve, slice pork in 1/2-inch slices, arrange on serving platter, and pour sauce overtop.