1 (32 oz.) bag frozen hash brown potatoes, thawed
1 stick margarine, melted
¼ cup finely chopped onion
1 (10 oz.) can low fat cream of chicken soup
1 (16 oz.) carton light sour cream (2 cups)
8 oz. cheddar cheese, grated (2 cups)
1 – 2 lbs. low fat ham, cut into ½ inch cubes
1/3 cup Italian bread crumbs (homemade or from box)

Place all ingredients, except bread crumbs, in very large bowl and mix well.  Place mixture in 9” x 13” baking pan.  Top with bread crumbs. 
Bake uncovered 1 hour at 350° (325° for glass pan).

Serves: 6 - 8