Place the non-fat Greek yogurt into a small mixing bowl.
Sift the chocolate protein powder and cocoa powder into the bowl to prevent clumping.
Add the liquid stevia to the mixture.
Stir slowly with a spoon until the dry ingredients are partially incorporated to avoid powder dispersion.
Whisk vigorously for 1 minute or until the texture is smooth and uniform.
Adjust consistency with unsweetened almond milk if a thinner pudding is desired.
Chill in the refrigerator for 10 minutes before serving for optimal texture.