01 - Preheat the oven to 350°F. Grease a 9x5-inch loaf pan or line it with parchment paper.
02 - In a large mixing bowl, thoroughly mash the bananas. Add melted butter, eggs, and vanilla extract, stirring until fully incorporated.
03 - In a separate bowl, whisk together the flour, granulated sugar, baking soda, and salt until evenly distributed.
04 - Gradually add the dry ingredients to the wet mixture, stirring gently until just combined. Avoid overmixing.
05 - Gently fold in the diced strawberries and, if desired, chopped nuts. Stir only until evenly distributed.
06 - Transfer the batter into the prepared loaf pan, smoothing the top with a spatula.
07 - Bake for 50 to 55 minutes or until a toothpick inserted in the center comes out clean.
08 - Allow the bread to cool in the pan for 10 minutes. Remove and transfer to a wire rack to cool completely before slicing.