1 (10.75 ounce) can condensed cream of chicken soup
1 (4 ounce) package cream cheese
1 cup chopped celery
1 cup chopped onion
12 (2 inch) boneless, skinless chicken breast halves - cut into 1/2 inch cubes
1/2 cup shredded Cheddar cheese
In a large bowl, beat together chicken, cream cheese, celery, onion, and chicken. Stir together and chill in refrigerator.
Preheat oven to 400 degrees F (200 degrees C).
Position chicken cubes in 13x9 inch baking dish. Pour cream cheese mixture over chicken.
Bake uncovered for about 15 minutes, basting with remaining creamer mixture.