Preheat oven to 350°.
Place chicken in an 11 x 7-inch baking dish coated with cooking spray. Spoon salsa evenly over chicken; top with green onions. Sprinkle with cheese. Cover and bake at 350° for 30 minutes. Uncover and bake an additional 10 minutes or until chicken is done. Serve with hot cooked rice or baked potatoes.