Heat the avocado oil in a large non-stick or cast-iron skillet over medium-high heat.
Add the diced Yukon gold potatoes to the skillet, spreading them in a single layer to ensure they get golden and crispy.
Cook the potatoes for 8-10 minutes, stirring occasionally, until they are tender and browned on the edges.
Push the potatoes to one side of the pan and add the ground turkey sausage, diced red bell pepper, and yellow onion to the empty side.
Break up the sausage with a spatula and cook until browned and the vegetables have softened, about 5-6 minutes.
In a small bowl, whisk together the large egg and liquid egg whites until well combined.
Lower the heat to medium and pour the egg mixture over the sausage and potato mixture in the skillet.
Sprinkle the sea salt, black pepper, garlic powder, and smoked paprika evenly over the ingredients.
Stir gently with a spatula until the eggs are just set and scrambled into the mixture.
Fold in the baby spinach during the last minute of cooking until it is slightly wilted, then serve immediately.