01 - Preheat oven to 350°F. Lightly grease a 9x5-inch loaf pan or line with parchment paper.
02 - In a large mixing bowl, mash ripe bananas until smooth. Add melted butter, eggs, and vanilla extract, then stir thoroughly.
03 - In a separate bowl, whisk together all-purpose flour, granulated sugar, baking soda, and salt.
04 - Gently add dry ingredients to the banana mixture, stirring until just combined and no visible flour remains.
05 - Carefully fold in diced strawberries and chopped nuts, if using, being mindful not to overmix.
06 - Transfer batter into prepared loaf pan, smoothing the surface evenly.
07 - Bake for 50 to 55 minutes, or until a toothpick inserted in the center emerges clean.
08 - Let bread cool in the pan for 10 minutes, then transfer to a wire rack to finish cooling before slicing.