Preheat oven to 350°F. Spray a 9x5-inch loaf pan with nonstick baking spray or grease and flour the pan.
Add banana to a large bowl. Mash with a fork or potato masher.
Add eggs, water, 1 teaspoon vanilla, and oil. Stir until combined.
Gradually mix in sugar followed by pancake mix; stir until everything is well incorporated.
Carefully fold in chopped strawberries; pour batter into prepared loaf pan.
Bake for 40-50 minutes or until a toothpick comes out clean. Cool briefly before transferring from pan.
Prepare glaze by whisking powdered sugar with remaining vanilla extract, strawberry extract if desired, plus heavy cream until smooth.
Frost cooled bread with glaze. Store any leftovers covered at room temperature up to three days or freeze unfrosted loaves for up to two months.