1. Preheat oven to 375 degrees. Lightly oil a 9-inch loaf pan.
2. In a large bowl, whisk together flour, oats, flax baking powder and salt. In a separate bowl, whisk together milk, eggs, brown sugar, yogurt and oil. Add the egg mixture to the dry ingredients, and mix in flour mixture until just combined. Gently fold in the granola and bananas.
3. Pour mixture into the prepared loaf pan and bake for about 40 minutes, or until a toothpick inserted in the center of the loaf comes out clean. Cool for 5 minutes before removing from tin. Serve warm. The loaf keeps well for a few days—to freshen it up, pop a slice in the microwave for about 15 to 30 seconds.