Preheat oven to 350°F. Coat a 9- x 5-inch loaf pan with cooking spray.
Combine banana and next 5 ingredients (through eggs) in a large bowl; beat with an electric mixer at medium speed until combined. Add sugars; beat until combined.
Weigh or lightly spoon flour into dry measuring cups; level with a knife. Combine flour, baking soda, and salt in a bowl, stirring with a whisk. Add flour mixture to banana mixture; beat just until combined. Fold in chocolate. Pour batter into prepared pan; sprinkle with sesame seeds.
Bake at 350°F for 55 minutes or until a wooden pick inserted in the center comes out clean. Cool in pan 10 minutes on a wire rack. Remove bread from pan; cool completely.