Toast the sourdough slice in a toaster or under a broiler until golden brown and firm.
In a medium bowl, whisk together the whole eggs, liquid egg whites, and cottage cheese until the mixture is well combined and slightly frothy.
Heat a non-stick skillet over medium-low heat and add the ghee, swirling to coat the bottom of the pan.
Pour the egg mixture into the skillet and let it sit for 30 seconds before gently pushing the curds from the edges toward the center with a silicone spatula.
Continue cooking the eggs low and slow, stirring occasionally, until they are just set but still look moist and velvety.
Season the scrambled eggs with sea salt and black pepper while they are still in the pan, then remove from heat immediately.
Slice the avocado into thin wedges or mash it slightly if preferred.
Place the toasted sourdough on a plate, pile the creamy eggs on top, and layer the avocado slices over the eggs.
Garnish the dish with fresh chives and red pepper flakes for a subtle kick and serve immediately.