Preheat your oven to 400°F (200°C).
In a small oven-safe skillet or baking dish, toss the cherry tomatoes and minced garlic with the extra virgin olive oil.
Place the skillet in the oven and roast for 10 minutes until the tomatoes begin to blister and soften.
Remove from the oven and stir in the baby spinach until it is slightly wilted from the residual heat.
In a small bowl, whisk together the liquid egg whites with the sea salt, black pepper, and dried oregano.
Pour the egg white mixture over the roasted vegetables in the skillet.
Carefully crack the 4 whole eggs on top of the mixture, spacing them out evenly.
Sprinkle the crumbled feta cheese over the top of the eggs and vegetables.
Return the skillet to the oven and bake for 10 to 12 minutes, or until the egg whites are fully set but the yolks remain soft and jammy.
Remove from the oven and serve immediately while hot.