Preheat your oven to 425°F (218°C) to get things started. This helps your muffins rise perfectly.
While it heats up, line your muffin pan with parchment paper or give it a light spray of oil so the muffins come out effortlessly.
In a large bowl, lightly beat the eggs to break the yolks. Add in the Greek yogurt, mashed bananas, brown sugar, and vanilla extract. Mix everything until smooth, letting the sweet banana aroma fill the air.
Next, stir in the oats, baking powder, baking soda, and a pinch of salt. Give it a quick mix to combine, but don’t worry if it’s a bit lumpy.
Now, gently fold in the flour until just combined. You want to avoid overmixing, lumps are totally okay! If you're adding any extras like nuts or chocolate, fold them in now.
Spoon the batter into the muffin cups, filling them to the top for that perfect bakery-style dome. If you’d like, sprinkle some oats on top for extra texture and a rustic look.
Begin by baking the muffins at 425°F (218°C) for the first 5 minutes.
Once 5 minutes are up, leave the oven door closed, lower the temperature to 350°F (176°C), and bake for another 15 minutes.
They’re ready when the tops are golden brown, and a toothpick comes out with just a few crumbs.
Leave the muffins in the pan for 10 minutes, then carefully transfer them to a wire rack to cool fully. Enjoy!