Cook rice mix according to package directions, omitting fat.
Sprinkle seasoning evenly over chicken pieces.
Cook chicken in a large nonstick skillet coated with cooking spray over medium-high heat 10 minutes or until chicken is done, stirring often.
Stir together chicken, rice, onion, and next 5 ingredients in a bowl. Spoon into an 11- x 7-inch baking dish coated with cooking spray. Sprinkle with cheese.
Bake at 350° for 30 minutes or until bubbly around edges.
Note: For testing purposes, we used Mrs. Dash salt-free herb-and-spice seasoning.