Preheat oven to 375°F (190°C)

Grease a muffin tin or line with silicone muffin liners

Add oats to a blender and blend into oat flour

In a mixing bowl combine oat flour, protein powder, and baking powder

In another bowl whisk eggs, milk, Greek yogurt, vanilla extract, and honey

Combine the wet and dry ingredients and mix until smooth

Fold in blueberries or other berries

Spoon batter evenly into muffin cups

Fill each cup about three-quarters full

Bake until the muffins are golden and cooked through

Allow muffins to cool slightly before removing from the pan