Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Place the diced zucchini, bell peppers, and red onion on the baking sheet, drizzle with olive oil, and season with half of the salt and pepper.
Roast the vegetables for 15-20 minutes, tossing halfway through, until they are tender and slightly caramelized around the edges.
While the vegetables roast, whisk the whole eggs and liquid egg whites together in a medium bowl until well combined and frothy.
Heat a large non-stick skillet over medium-low heat and add the ghee, swirling to coat the pan.
Pour the egg mixture into the skillet and let it sit for 30 seconds before gently stirring with a silicone spatula.
Continue to cook the eggs slowly, using a sweeping motion to create large, soft curds.
When the eggs are nearly set but still slightly moist, fold in the roasted vegetables and the remaining salt and pepper.
Remove from heat immediately to prevent overcooking and garnish with fresh chopped chives before serving.