Preheat your oven to 350°F (175°C). Prepare a muffin tin by lining it with paper liners or lightly greasing it with cooking spray or a bit of oil.
In a large mixing bowl, combine the rolled oats, all-purpose flour, brown sugar, baking powder, baking soda, salt, and ground cinnamon. Stir the mixture thoroughly to ensure all dry ingredients are well blended and free of lumps.
In a separate medium bowl, mash the ripe bananas until smooth. Add the yogurt, eggs, honey (or maple syrup), and vanilla extract. Whisk together until the mixture is creamy and uniformly combined.
Gently pour the wet mixture into the bowl with the dry ingredients. Using a spatula, fold the mixtures together until just combined, being careful not to overmix; a few lumps are perfectly okay!
Carefully fold in the chopped strawberries and nuts (if using), ensuring they are evenly distributed within the batter without overworking it.
Spoon the batter into the prepared muffin tin, filling each cavity about two-thirds full to allow for rising.
Bake in the preheated oven for 18-22 minutes or until a toothpick inserted into the center of a muffin comes out clean, with no wet batter clinging to it.
Once baked, allow the muffins to cool in the tin for approximately 5 minutes. Then, transfer them to a wire rack to cool completely before serving.
Notes
Serve warm with Greek yogurt and strawberries for a delightful treat.