Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Dice the gold potatoes into small, even cubes and toss them in a bowl with avocado oil, garlic powder, half the sea salt, and half the black pepper.
Spread the potatoes in a single layer on the baking sheet and roast for 20-25 minutes until the edges are golden and crispy.
While potatoes roast, whisk together the whole eggs and egg whites in a medium bowl until the mixture is uniform and light.
Heat a non-stick skillet over medium heat and sauté the diced red bell peppers for 3-4 minutes until they begin to soften.
Pour the egg mixture into the skillet, seasoning with the remaining salt and pepper, and stir gently with a silicone spatula to form soft, creamy curds.
When the eggs are nearly set, add the baby spinach to the pan and fold it in until the leaves are just wilted.
Plate the fluffy scrambled eggs alongside the hot roasted potatoes and garnish with freshly chopped chives.