Preheat your oven to 375°F (190°C).
Heat the extra virgin olive oil in a small oven-safe skillet over medium heat.
Add the cherry tomatoes to the skillet and cook for 4-5 minutes, stirring occasionally, until the skins begin to blister and burst.
Add the baby spinach to the skillet and sauté for 1 minute until just wilted.
In a small bowl, whisk the liquid egg whites with the sea salt, black pepper, and dried oregano.
Pour the egg white mixture into the skillet, ensuring it covers the tomatoes and spinach evenly.
Carefully crack the two whole eggs on top of the egg white mixture, spaced apart, keeping the yolks intact.
Sprinkle the crumbled feta cheese evenly over the top of the skillet.
Transfer the skillet to the preheated oven and bake for 8-10 minutes, or until the egg whites are fully set but the whole egg yolks are still slightly soft.
Remove from the oven and garnish with fresh torn basil before serving warm.