PREHEAT oven to 350°F. Spray 13x9-inch baking dish with cooking spray. Mix cream cheese, sour cream and chicken broth in large bowl until well blended. Add potatoes, ham, 1-3/4 cups of the cheese and peas; stir gently to coat all ingredients.
SPOON into prepared baking dish. Sprinkle with remaining 1/4 cup cheese.
BAKE 1 hour or until heated through and potatoes are tender.
serving size = 3/4 cup (175 mL)