1Heat oven to 400°.
2Cook chicken in 10-inch skillet over medium heat 8 to 10 minutes, stirring occasionally, until no longer pink; drain.
3Spoon chicken into ungreased 2-quart casserole. Stir in vegetables, tomato sauce, pasta, garlic salt and pepper.
4Cover and bake about 30 minutes or until vegetables are tender. Stir; sprinkle with cheese.