01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan or line with parchment paper.
02 - In a large bowl, mash bananas until smooth. Blend in melted butter, eggs, and vanilla extract until fully incorporated.
03 - In a separate bowl, whisk together all-purpose flour, granulated sugar, baking soda, and salt until uniform.
04 - Add dry ingredients to the wet mixture and fold gently until just combined to avoid overmixing.
05 - Fold in diced strawberries and nuts, if desired, distributing evenly throughout the batter.
06 - Pour batter into the prepared loaf pan, smoothing the top as needed.
07 - Bake for 50 to 55 minutes, or until a toothpick inserted into the center emerges clean.
08 - Allow to cool in pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.