Heat oven to 350°F. Place turkey breast roast, skin side up, in ungreased 13x9-inch (3-quart) baking dish. Arrange sweet potatoes, russet potatoes, green beans and mushrooms around turkey.
In small bowl, combine broth and remaining ingredients; drizzle over turkey and vegetables. Insert meat thermometer in turkey breast roast. Cover tightly with foil.
Bake at 350°F. for 1 1/2 to 2 hours or until internal temperature of turkey is 170°F. and vegetables are fork-tender, basting once with pan juices.