Slice the chicken sausage into thin rounds.
Heat one teaspoon of ghee in a non-stick skillet over medium heat and brown the sausage until golden and slightly crisp.
Add the baby spinach to the skillet and sauté for 1-2 minutes until just wilted, then remove the sausage and spinach from the pan and set aside.
In a small bowl, whisk the eggs, egg whites, and Greek yogurt together until the mixture is smooth and slightly frothy.
Wipe the skillet clean, add the remaining teaspoon of ghee, and reduce the heat to medium-low.
Pour the egg mixture into the skillet and let it sit for a few seconds until the edges begin to set.
Using a silicone spatula, gently push the eggs toward the center, creating soft, creamy curds until they are mostly set but still look moist.
Season with a pinch of sea salt and black pepper, then serve immediately alongside the warm sausage and spinach.