Heat olive oil in a non-stick skillet over medium heat. Add scallions and cook until softened, about 3 minutes.
Add diced tomato to the skillet, cook until the tomato softens and releases its juices, about 2 minutes.
Pour the beaten eggs over the cooked vegetables. Season with salt and pepper. Stir gently, cooking until the eggs are set but still soft, about 4-5 minutes.