Preheat your oven to 350 degree. Grease 9 tins in a regular muffins pan.
In a large bowl, whisk together the eggs, mashed banana, coconut sugar, coconut oil, almond milk, lemon juice, and vanilla extract.
Now add in the almond flour, tapioca flour, baking powder, baking soda, cinnamon and salt. Mix until combined.
Using a 1/4 measuring cup, scoop the batter evenly into 9 muffin tins.
Add crushed walnuts on top of each muffin.
Bake the muffins at 350 degrees for 22-24 minutes. Let them cool slightly, remove them from the tins, and enjoy!