Let's finish with an incredibly easy recipe. When you're all out of ideas, you can always rely on an omelet. Beat a few eggs, add some milk or cream then season with salt and pepper. .Pour the eggs in a hot pan, add a handful of fresh or frozen spinach along with some leftover cheese, then fold in half. If you can't be bothered to make an omelet, spinach and cheese scrambled eggs are just as delicious!