Heat milk in 2-quart saucepan; add cream cheese, cottage cheese, and 1/4 cup butter. Stir until smooth; cool slightly. Add sugar, orange and lemon peel; mix well. Beat eggs and stir into cream sauce. Stir in rice; pour into greased 8x8x2-inch baking dish. Combine rice cereal and brown sugar; sprinkle over rice mixture. Pour remaining 1/4 cup melted butter over top. Bake at 350 degrees F. for 30 minutes, or until center is barely set.