Sprinkle pepper and salt over chicken; place chicken in a 13- x 9- x 2-inch baking dish coated with cooking spray. Bake at 375° for 35 minutes or until chicken is tender. Let cool. Bone chicken, and cut into bite-size pieces.
Combine chicken, rice, and celery in a large bowl; toss lightly.
Position knife blade in food processor bowl; add cottage cheese and next 3 ingredients. Process until smooth. Add chopped basil; process until blended. Pour basil mixture over rice mixture; toss lightly. Stir in Parmesan cheese and almonds.
To serve, spoon 1 1/2 cups rice mixture onto each of 4 plates. Arrange tomato wedges evenly around rice mixture. Garnish with basil sprigs, if desired.