Omelettes are a quick and nutritious option for breakfast, lunch, or dinner. Beat a couple of eggs in a bowl and season with salt and pepper. Heat a non-stick pan and add a pat of butter or a drizzle of oil. Pour the beaten eggs into the pan and cook until the edges start to set. Add your choice of fillings, such as cheese, ham, mushrooms, or spinach. Fold the omelette in half and cook for a few more minutes until the cheese is melted and the eggs are fully cooked. Omelettes are versatile and can be customized with your favorite ingredients.