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 bananas until smooth. Stir in melted butter, eggs, and vanilla extract until thoroughly combined.
03 - In a separate bowl, whisk together all-purpose flour, granulated sugar, baking soda, and salt.
04 - Add the dry ingredients to the wet mixture and gently mix until just incorporated, avoiding overmixing.
05 - Gently fold diced strawberries and optional nuts into the batter until evenly distributed.
06 - Pour batter into prepared loaf pan and smooth the top. Bake for 50–55 minutes, or until a toothpick placed in the center comes out clean.
07 - Let the bread cool in the pan for 10 minutes. Remove to a wire rack to cool completely before slicing.