Rinse chicken; pat dry with paper towels. Combine the red and black peppers; rub over chicken breasts. Combine the salad dressing, mustard and Worcestershire sauce. Lightly brush both sides of chicken breats with some of the dressing mixture.
Place chicken in a shallow baking dish or pan. Bake, uncovered in a 375-degree oven for 20-25 minutes or till chicken is no longer pink. In a small saucepan heat any remainging dressing mixture just to boiling; serve with chicken. Makes 4 servings.