Combine the sesame seeds, oil, ginger, honey, soy and cayenne in a bowl and mix well. Set aside. Reserve a small amount of the sauce in a small bowl to use when serving.
Cut the chicken breasts in half, horizontally. Grill the chicken on a medium to hot BBQ grill. Baste chicken occasionally with the sauce mixture for 6-8 minutes on each side (cooking time will vary depending on the size of each breast).
Serve with remaining sauce, salad & sprinkle with pecan pieces.