HEAT oven to 350°F.
MIX bananas and dressing in large bowl. Combine flour, sugar and baking soda. Add to banana mixture with chocolate; stir just until moistened. (Batter will be lumpy.) Gently stir in raspberries.
POUR into 9x5-inch loaf pan sprayed with cooking spray.
BAKE 1 hour or until toothpick inserted in center comes out clean. Cool in pan 10 min.; remove to wire rack. Cool completely.