Fill hopper with pellets, start up pellet grill, and preheat to 325°F.
Add fresh herbs to the exterior of the turkey breast, if using.
1 tablespoon Fresh Sage, 1 tablespoon Fresh Thyme
Place the turkey breast on the pellet grill, either on the grilling rack in the pan it was in the refrigerator to catch any drippings, or on a V shaped roasting rack on the pellet grill. If using a smoker box, place it on the grates to the left of the turkey pan.
Place an internal temperature probe if you have one into the center of one of the breasts.
Close the lid, cook the turkey for about 2 hours, or 15 minutes per pound. Flip the breast every 45 minutes and also rotate occasionally for even cooking and moisture distribution.
When the internal temperature of the turkey breast reaches 145°F, turn the pellet grill up to 350°F to finish cooking and crisp up the skin.
When the internal temperature of the turkey breast has reached 160°F in the thickest part of the meat, remove from the pellet grill. Make sure to check multiple areas on the breast with an instant read thermometer to ensure proper temperature.
Let the turkey breast rest for 15-30 minutes before carving to allow the juices to distribute and for it to reach a final internal temperature of 165°F.
Carve the turkey breasts off of the bone, slice into thick slices, plate, sprinkle with fresh herbs if desired. Serve immediately.