In small bowl, combine garlic salt, pepper, marjoram and sage with oil. Rub mixture over all sides of tenderloins. Place pork on parchment-lined, rimmed baking sheet.
Roast 20-25 minutes or until instant-read thermometer registers 155°F.
Remove pork from oven onto a clean cutting board. Tent loosely with foil and let rest 5 minutes.
Slice into 1/4-inch thick slices. Cover loosely with plastic wrap or foil and set aside or refrigerate.
To Assemble
Reduce oven temperature to 375°F. Place bread slices on ungreased baking sheet.
Bake 6-8 minutes, just until bottoms are starting to brown; remove from oven and let cool.
Spread each bread slice with a small amount of mustard.
Top each with a slice or pork, a dollop of chutney and about a 1/2 tsp of crumbled blue cheese.
Tips
Note: Leftover chutney can be frozen for later use.