In a large bowl, beat the cream cheese, butter and brown sugar until smooth. Add eggs, one at a time, beating well after each addition. Add the sweet potatoes, broth, salt and nutmeg; mix well. Stir in nuts. Transfer to a greased shallow 1-1/2-qt. baking dish. Bake, uncovered, at 350° for 40-45 minutes or until a thermometer reads 160°.