Whisk together the salt, baking soda, and all-purpose flour in a mixing bowl.
In a separate bowl, whisk together the Greek yogurt, mashed banana, melted butter, eggs, vanilla extract, and brown sugar.
Add the dry ingredients to the wet and mix until just combined using a rubber spatula. Be careful not to over mix the batter as this can dry the muffins out and cause them to be dense instead of fluffy.
Fold the chocolate chips into the banana muffin batter.
Line a muffin tin with parchment paper muffin liners (nothing sticks to them!) or spray your muffin tin with nonstick cooking spray.
Distribute the batter evenly into the muffin cups, filling each one ⅔ of the way full. Top with more additional chocolate chips on top. The recipe will make 17 muffins.
Bake the Greek yogurt banana muffins at 350 degrees for 18-22 minutes, or until golden brown on top and a toothpick inserted comes out clean.