Dice the sweet potato into small half-inch cubes to ensure they cook quickly and evenly.
Heat the olive oil in a medium cast-iron skillet over medium heat.
Add the sweet potatoes to the skillet and cook for 6-8 minutes, stirring occasionally, until they are tender and slightly browned.
Slice the chicken sausage into rounds and add them to the skillet along with the diced bell peppers and red onions.
Sauté for another 5 minutes until the sausage is browned and the vegetables have softened.
In a small bowl, whisk together the whole eggs, egg whites, sea salt, black pepper, and smoked paprika.
Pour the egg mixture over the ingredients in the skillet, tilting the pan to ensure even coverage.
Reduce the heat to medium-low and cook undisturbed for 3-4 minutes, or until the eggs are set and fluffy.
Garnish with freshly chopped parsley and serve immediately directly from the skillet.