WHISK together the egg white, almond milk, lemon juice, lemon zest, Swerve, and Stevia in a large mug that’s been sprayed with non-stick cooking spray.
STIR in the almond flour, flaxseed meal, baking powder, salt, and poppy seeds. Mix until smooth.
FOLD in the blueberries and microwave on high for 2 ½ - 3 ½ minutes.