Place a nonstick sauté pan over medium-high heat and melt the butter. When it is melted, add the garlic and halved tomatoes. Cook for 1 to 2 minutes.
Add the baby spinach and cook for another 1 to 2 minutes, until the spinach is wilted. Reduce heat to medium.
Beat the eggs, chives, parsley, milk, salt, and pepper until it is thoroughly mixed. Pour the egg mixture into the skillet. Stir constantly so that the eggs do not brown. When the center is still a little soft, add the crumbled feta cheese over the eggs. Fold onto the plate and serve.