1. 1. Add 1/2 cup brown sugar to the 2 1/2 cups of diced strawberries, soak for 5-10 min.  Smash or blend 2 cups of the strawberries using a food processor. Reserve the rest of the diced strawberries for Step 5.

2.  Preheat the oven to 350 degrees F.  Spray a 9x5-inch loaf pan with nonstick spray.

3.  Sift 2 cups flour, 1 tsp baking soda, 1 tsp cinnamon, 1/2 tsp nutmeg (optional), and 1/2 tsp salt together into a bowl.

4.  In a separate bowl, beat 1/4 cup refine sugar and 1/2 cup unsalted softened butter together until lighter in color.

5.  Mix in 3/4 cup sour cream, 2 eggs, and 1 tsp vanilla. Add 3 mashed large bananas and mix until combined. Gradually mix in dry ingredients. Fold in the smashed or blended strawberries and 1/2 cup diced strawberries and 1 1/2 cup walnuts. 

6.  Pour the mixture into the prepared loaf pan.  

7.  Bake in the preheated oven until golden brown and a toothpick inserted in the center comes out clean, 45 to 60 minutes.

8.  Slice, serve and enjoy!