You can whip up a delicious spinach and cheese omelet by whisking eggs and adding shredded cheese and sautéed spinach. Serve it with toasted bread for a fulfilling meal. This breakfast or lunch option typically contains about 350 calories. Alternatively, consider making an egg and spinach sandwich; just scramble the eggs with spinach, put it between two slices of toasted bread, and add a slice of cheese for a tasty and quick option.