In a medium bowl, whisk together the whole eggs, egg whites, sea salt, and black pepper until the mixture is uniform and slightly frothy.
Heat a non-stick skillet over medium-low heat and melt the grass-fed butter, swirling to coat the bottom of the pan.
Add the baby spinach to the skillet and sauté for 1 minute until just wilted, then push to one side.
Pour the egg mixture into the skillet and let it sit for 20 seconds until the edges begin to set.
Using a silicone spatula, gently push the eggs from the edges toward the center, creating large, soft curds.
When the eggs are nearly set but still look slightly wet, fold in the chopped smoked salmon, minced chives, and minced parsley.
Remove from heat immediately to allow the residual heat to finish cooking the eggs for a creamy, delicate texture.