Cut each pork tenderloin lengthwise about two-thirds of the way through
Flatten out with a meat mallet to about 1/4 inch thick
Combine apples, carrot, onion, pecans and salt and pepper together and mix well
Place equal amounts in each tenderloin and spread out
Roll up tenderloins and secure with toothpicks
Bake at 375 degrees for about 30 minutes
Spread apricot preserve on top of each tenderloin and bake an additional 10 - 15 minutes or until pork is fully cooked
Slice and serve