Preheat your oven to 400°F (200°C) and line a small baking sheet with parchment paper.
Dice the zucchini and red bell pepper into half-inch cubes, then place them on the baking sheet.
Drizzle the vegetables with olive oil and season with sea salt and garlic powder, tossing to coat evenly.
Roast the vegetables for 15-18 minutes until they are tender and slightly browned at the edges.
While the vegetables roast, whisk the whole eggs, egg whites, Greek yogurt, and black pepper in a medium bowl until completely smooth and combined.
Heat a non-stick skillet over medium-low heat and add the grass-fed butter, swirling to coat the pan.
Pour the egg mixture into the skillet and let it sit for 30 seconds, then use a spatula to gently push the eggs from the edges to the center.
Continue cooking slowly, stirring occasionally, until the eggs are soft and creamy but no longer liquid.
Plate the scrambled eggs immediately and serve with the roasted vegetables and fresh cherry tomatoes on the side.