Preheat your oven to 350°F (175°C).
Grease your loaf pan with coconut oil or line it with parchment paper.
In a large mixing bowl, whisk together the almond flour, vanilla whey protein powder, coconut sugar, cinnamon, baking soda, and salt.
In another bowl, combine the melted coconut oil, eggs, vanilla extract, and mashed bananas. Whisk until smooth.
Pour the wet mixture into the bowl with the dry ingredients and gently fold together using a spatula.
Transfer the batter into the prepared loaf pan, smoothing the top with your spatula.
Bake for 50-60 minutes, or until a toothpick inserted in the center comes out clean.
Let the banana bread cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely before slicing.
