Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Peel and cube the sweet potato into half-inch pieces, then dice the red bell pepper.
In a large bowl, toss the sweet potato and bell pepper with olive oil, sea salt, black pepper, and smoked paprika until evenly coated.
Spread the vegetables in a single layer on the prepared baking sheet and roast for 20-25 minutes until the potatoes are tender and edges are caramelized.
In a medium mixing bowl, whisk together the large eggs and liquid egg whites until the mixture is smooth and aerated.
Place a large non-stick skillet over medium heat, add the roasted vegetable hash and the baby spinach, stirring for 1 minute until the spinach just begins to wilt.
Pour the egg mixture directly over the vegetables in the skillet and cook, stirring gently with a spatula, until the eggs are set and fluffy.
Remove from heat, garnish with freshly chopped chives, and serve immediately.