Preheat oven to 350°F.
Coat a muffin tin with non-stick spray or line with paper liners.
In a large bowl, combine flour, oats, sugar, baking powder, baking soda, and salt.
In a separate bowl, mix together yogurt, eggs, melted butter, and vanilla.
Add wet ingredients to dry ingredients and stir until just combined.
Gently fold in blueberries.
Spoon batter evenly into muffin tins.
Bake for 20–25 minutes, until tops are golden and spring back when lightly touched.
Let cool slightly and enjoy warm.