Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Dice the red bell pepper, zucchini, and red onion into small, uniform pieces.
Toss the vegetables with the extra virgin olive oil and a pinch of salt on the baking sheet.
Roast the vegetables for 15-18 minutes until they are tender and slightly caramelized at the edges.
While the vegetables roast, whisk together the whole eggs, liquid egg whites, sea salt, and black pepper in a medium bowl until well combined.
Heat a 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 until the edges begin to set.
Using a silicone spatula, gently push the eggs from the edges toward the center to create soft, large curds.
When the eggs are nearly cooked but still slightly moist, fold in the roasted vegetables and the crumbled feta cheese.
Remove from heat immediately and serve warm.