Preheat oven to 350 degrees F. Brush 9 x 5-inch loaf pan with additional I Can't Believe It's Not Butter!(R) Spread; set aside.
Combine mashed banana, I Can't Believe It's Not Butter!(R) Spread, brown sugar, eggs and vanilla in large bowl with wooden spoon. Stir in remaining ingredients except Glaze until blended. Spoon into prepared pan.
Bake 60-70 minutes until toothpick inserted in center comes out clean. Cool 20 minutes on wire rack; remove from pan and cool completely.
To make Glaze, combine confectioners sugar, melted Spread, vanilla, orange peel and 3 to 4 teaspoons warm water in small bowl. Drizzle over cooled banana bread.
