Preheat your oven to 350°F (175°C). This ensures that your Greek Yogurt Banana Nut Bread bakes evenly.
Spray your loaf pan with nonstick cooking oil spray to prevent sticking. Set it aside.
In a large mixing bowl, cream together the room temperature unsalted butter, granulated sugar, and brown sugar until the mixture is light and fluffy.
Add the eggs, applesauce, mashed bananas, Greek yogurt, and vanilla extract to the butter-sugar mixture. Mix until well combined.
In another bowl, whisk together the all-purpose flour, baking soda, ground cinnamon, salt, ground cloves, and ground nutmeg.
Gradually add the dry ingredients to the wet ingredients, mixing just until combined. Be careful not to overmix.
Gently fold in the chopped walnuts, ensuring they are evenly distributed throughout the batter.
Pour the batter into the prepared loaf pan. Bake in the preheated oven for 60-65 minutes, or until a toothpick inserted in the center comes out clean.
Once baked, remove the loaf from the oven and allow it to cool in the pan for about 10 minutes. Then, transfer it to a cooling rack to cool completely.