In a bowl, mash banana and mix with grated apple
On a separate bowl, mix flour, baking power, baking soda, and salt
Mix dry ingredients into wet ingredients to combine
Preheat oven to 350 F
Line muffin tray with cupcake wrapper, drop batter by 2 ice cream scoop (makes 9 muffins)
Top each with 1 heaping tbsp granola
Bake for 25-30 mins
Cool on rack