Ritz Cracker Chicken and Dressing

4 skinless, boneless chicken breast halves, cooked and diced
1 can cream of mushroom soup
1 1/2 cups Velveeta cheese, grated
1 1/2 cups celery, diced
1 onion, chopped
3 eggs, beaten
3 cups chicken broth
4 cups Ritz Cracker crumbs (reserve 1 cup for topping)

In a large bowl combine all ingredients. Pour into a 9 x 13-inch baking pan, which has been sprayed with vegetable oil spray. Sprinkle reserved crumbs over the top. Bake uncovered at 325 degrees F for 1 hour.