2
Sprinkle both sides of chicken pieces with seasoned salt and pepper. Cover and grill chicken over medium heat, skin sides up, 15 minutes; turn chicken. Cover and grill 20 to 40 minutes longer, turning occasionally and brushing 2 or 3 times with mustard mixture, until juice of chicken is clear when thickest piece is cut to bone (170°F for breasts; 180°F for thighs and legs).