Ingredients: 
1 broiler-fryer chicken, cooked, skinned, boned, broken into pieces
1/2 cup chicken broth
1 clove garlic, halves
4 Yukon gold potatoes, sliced thin
1/4 teaspoon salt
1/4 teaspoon pepper
3/4 cup nonfat dairy sour cream
3/4 cup skim milk, divided use
1 small onion, minced
3 tablespoons chopped pimento
1 teaspoon prepared mustard
2 tablespoons fresh lemon juice
2 tablespoons freshly grated Romano cheese
2 tablespoons light butter-flavored margarine, melted
1 cup whole wheat bread crumbs