Score tops of chicken with sharp knife, then evenly spread 1 teaspoon. olive oil and sprinkle with ¾ teaspoon chili pepper. Blend remaining 2 teaspoons olive oil, yogurt, lemon juice and cumin in medium bowl. Add chicken; toss to coat. Arrange chicken, onion and red pepper in shallow roasting or broiler pan. Broil until chicken is thoroughly cooked through and vegetables are tender, about 8 minutes.
Meanwhile, cook Knorr® Pasta Sides™ - Chicken flavor according to package directions, stirring in remaining chili powder with water.
Serve chicken and vegetables over noodles. Garnish, if desired, with lemon wedges.