01 - Preheat oven to 350°F. Lightly grease a 9x5-inch loaf pan or line with parchment paper.
02 - Mash bananas in a large bowl until smooth. Stir in melted butter, eggs, and vanilla extract until evenly blended.
03 - In a separate bowl, whisk together the flour, granulated sugar, baking soda, and salt.
04 - Gently stir the dry mixture into the wet ingredients until just combined, being careful not to overmix.
05 - Fold in the diced strawberries and nuts if using, distributing evenly through the batter.
06 - Pour the batter into the prepared loaf pan and level the surface. Bake for 50 to 55 minutes, or until a toothpick inserted in the center comes out clean.
07 - Allow bread to cool in the pan for 10 minutes before transferring to a wire rack to cool completely. Slice and serve as desired.