PREHEAT oven to 350°F. Mix flour, sugar, baking powder and salt in large bowl; set aside. Beat eggs, bananas, oil and milk in large bowl with wire whisk until well blended. Add dry ingredients; stir just until moistened. Stir in chocolate and walnuts.
POUR into greased 9x5-inch loaf pan.
BAKE 55 min. or until wooden toothpick inserted in centre comes out clean. Cool in pan 10 min.; remove to wire racks. Cool completely.
