Add steel cut oats, almond flour, flour or gluten free baking mix, eggs, baking soda, milk, brown sugar, stevia, salt and lemon juice to the blender and blend until smooth.
Place muffin liners into a muffin tin.
Pour the batter into each muffin tin and add ~ 4-5 blueberries on top of the batter and slightly pressed into the batter.