In a small mixing bowl, combine eggs, milk, greek yogurt, and vanilla extract and stir until uniform.
In another bowl, stir together flour, baking powder, sugar, salt. Pour wet ingredients into dry, and stir until well combined. Gently fold in blueberries, being careful not to over-mix.
Prepare mini muffin pan by spraying well with cooking spray. Divide batter into 32.
Bake for 18-20 minutes, until a toothpick comes out clean. Let cool in the pan for 5 minutes, and then enjoy!