Prepare the Bananas
Mash the ripe bananas thoroughly in a large mixing bowl until completely smooth.Mix the Wet Ingredients
Add the eggs, Greek yogurt, and honey (if using). Whisk until smooth and fully combined.Make Oat Flour
Place the quick oats into a food processor and blend until they become a fine flour.Combine Everything
Gradually mix the oat flour into the wet ingredients in two or three additions.Add the cinnamon and sift in the baking powder. Stir until a smooth batter forms.Add Chocolate
Fold about three-quarters of the chopped dark chocolate into the batter.Fill the Pan
Pour the batter into a greased and parchment-lined 1 kg (2 lb) loaf pan.Use a buttered knife to score a shallow line down the centre of the batter. This helps the loaf rise evenly.Top with the remaining chocolate chunks and sprinkle with a few rolled oats.Bake
Bake on the bottom rack of a preheated oven at 180°C (350°F) for approximately 40 minutes, or until:The top is golden brownA toothpick inserted into the centre comes out cleanThe loaf springs back lightly when touchedCool
Allow the banana bread to cool completely in the pan before slicing. This helps the loaf set properly and makes cleaner slices.