If you're looking for a healthier option, try a spinach and feta omelette. This omelette is packed with nutrients and flavor. For this recipe, you will need eggs, butter, salt, pepper, fresh spinach, feta cheese, and diced tomatoes. Start by whisking the eggs in a bowl and seasoning with salt and pepper. Heat a non-stick skillet over medium heat and add a knob of butter. Once the butter has melted, add the fresh spinach and sauté until wilted. Pour the beaten eggs over the spinach and cook, gently pushing the cooked edges towards the center. When the eggs are mostly set, crumble the feta cheese over one half of the omelette and sprinkle with diced tomatoes. Fold the other half of the omelette over the fillings and cook for another minute to melt the cheese. Slide the omelette onto a plate and serve hot. This spinach and feta omelette is a nutritious and delicious option for any meal of the day.