||Preheat grill or broiler.
||Combine goat cheese, basil, pesto and lemon peel in a small bowl. Add milk, 1 tablespoon at a time. Stir in lemon juice to thicken the sauce. Set aside.
||Brush chicken with oil; season with salt and pepper. Grill or broil chicken, 4-5 minutes per side or until meat thermometer inserted in center registers 170°F.
||To serve, spoon 2 tablespoons sauce over chicken breasts.