Peel and dice the sweet potato into small half-inch cubes, and dice the apple into similar sized pieces.
Heat the olive oil in a large non-stick skillet over medium heat.
Add the diced sweet potatoes to the skillet and cook for 8 to 10 minutes, stirring occasionally, until they are tender and golden brown.
Slice the chicken sausage into rounds and add them to the skillet along with the diced apples.
Sauté the mixture for another 4 to 5 minutes until the sausage is browned and the apples have softened slightly.
In a medium bowl, whisk together the whole eggs, egg whites, sea salt, and black pepper until well combined.
Push the sausage and potato mixture to one side of the skillet and pour the egg mixture into the open space.
Gently scramble the eggs with a spatula until they are just set and fluffy.
Toss all the ingredients together in the pan to combine and garnish with finely chopped fresh chives before serving.