Preheat your oven to 325°F (160°C). Line a standard 12-cup muffin pan with silicone or parchment liners.
In a blender, combine the cottage cheese, eggs, and sweetener. Blend until the mixture is completely smooth and creamy.
Next, add the almond flour, protein powder, baking powder, and salt to the blender. Blend again until all dry ingredients are fully incorporated into the wet mixture.
Stir in the fresh lemon zest and lemon juice. If the batter feels too thick, you can add an extra tablespoon of liquid (like water or almond milk) at a time until it's a thick, pourable consistency.
Gently fold the poppy seeds into the batter by hand. Avoid blending them to keep their texture intact.
Divide the batter evenly among the 12 prepared muffin cups, filling each almost to the top.
Bake for 25 to 30 minutes, or until the muffin tops are nicely puffed and feel firm when gently touched.
Let the muffins cool in the pan for about 15-20 minutes, then carefully remove them from their liners. This helps prevent sticking as they cool further. Enjoy your bright and healthy muffins!