01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan or line with parchment paper.
02 - In a large mixing bowl, mash the bananas until smooth. Add melted butter, eggs, and vanilla extract, mixing until fully combined.
03 - In a separate bowl, whisk together flour, sugar, baking soda, and salt.
04 - Add the dry ingredients to the wet mixture and gently stir until just incorporated.
05 - Fold in the diced strawberries and optional nuts, avoiding overmixing.
06 - Pour the batter evenly into the prepared loaf pan.
07 - Bake for 50 to 55 minutes, or until a toothpick inserted into the center comes out clean.
08 - Cool in the pan for 10 minutes, then transfer to a wire rack and allow to cool completely before slicing.