In a small mixing bowl, whisk together the whole eggs, egg whites, sea salt, and black pepper until the mixture is uniform and slightly frothy.
Place a non-stick skillet over medium-low heat and add half of the ghee, swirling to coat the pan.
Place the keto tortilla in the skillet and toast for 1-2 minutes per side until it becomes golden brown and crispy, then remove from the pan and set aside on a plate.
Add the remaining ghee to the same skillet. Once melted, pour in the egg mixture.
Using a silicone spatula, gently push the eggs from the edges toward the center, creating soft, creamy curds while keeping the heat low to prevent browning.
When the eggs are about 80% cooked and still look slightly wet, sprinkle the shredded sharp cheddar cheese over the top and fold gently until the cheese is melted and the eggs are set.
Spoon the cheesy scrambled eggs onto the center of the crispy tortilla and garnish with finely chopped fresh chives before serving.