In a medium bowl, whisk together the large eggs, liquid egg whites, sea salt, and black pepper until the mixture is uniform and slightly frothy.
Place a non-stick skillet over medium heat and add the ghee, swirling to coat the pan.
Add the diced ham to the skillet and sauté for 2-3 minutes until the edges are slightly browned and fragrant.
Toss in the baby spinach and cook for about 1 minute until just wilted.
Reduce the heat to medium-low and pour the egg mixture into the skillet.
Using a silicone spatula, gently push the eggs from the edges toward the center, creating soft curds.
Continue cooking slowly, stirring occasionally, until the eggs are set but still look moist and fluffy.
Remove from heat immediately to prevent overcooking and transfer to a plate.
Slice the avocado and place it on top of the eggs, then garnish with freshly chopped chives.