Ripe bananas: 200g (2 medium), Whole wheat flour: 120g (1 cup), Matcha powder: 8g (2 tsp), Baking soda: 3g (1/2 tsp), Baking powder: 3g (1/2 tsp), Salt: 1g (1/4 tsp), Egg: 50g (1 large), Greek yogurt: 60g (1/4 cup), Honey: 30g (1.5 tbsp), Coconut oil: 30ml (2 tbsp, melted), Vanilla extract: 5ml (1 tsp), Walnuts: 30g (1/4 cup, chopped)