01 - Preheat the oven to 350°F. Grease a 9x5-inch loaf pan or line it with parchment paper.
02 - In a large bowl, mash the bananas until smooth. Incorporate the melted butter, eggs, and vanilla extract, blending until fully integrated.
03 - In a separate bowl, whisk together the all-purpose flour, granulated sugar, baking soda, and salt.
04 - Add the dry mixture into the bowl with the banana mixture, stirring gently until just combined. Do not overmix.
05 - Gently fold in diced strawberries and nuts, if using, allowing even distribution without overworking the batter.
06 - Pour the batter into the prepared loaf pan, smoothing the top as needed.
07 - Bake for 50 to 55 minutes, or until a toothpick inserted in the center emerges clean.
08 - Rest in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.