Preheat your oven to 400 degrees Fahrenheit and line a large sheet pan with parchment paper for easy cleanup.
Peel the sweet potato and cut into uniform half-inch cubes to ensure even roasting.
On the prepared sheet pan, toss the sweet potato cubes, diced red onion, and chopped red bell pepper with avocado oil, sea salt, black pepper, garlic powder, and smoked paprika.
Spread the vegetables into a single layer and roast for 20 minutes until the potatoes are tender and starting to brown on the edges.
Remove the pan from the oven, move the vegetables to the outer edges, and add the ground turkey to the center, breaking it into small crumbles with a spatula.
Return the pan to the oven and roast for an additional 10 minutes until the turkey is fully cooked through.
Stir the turkey and vegetables together, then use a spoon to create two small wells in the mixture.
Carefully pour the liquid egg whites into one well and crack the whole egg into the second well.
Bake for 5 to 8 minutes or until the egg whites are opaque and the whole egg yolk is set to your preferred level of firmness.