With bread, toast, pastry, pasta, potatoes and other staples, eggs combine to make the most satisfying inexpensive and easy-to-cook dishes. Think of poached egg on toast. Think again, and top it with a little cream mixed with grated cheese, or place it on top of a few fried mushrooms. Beat some eggs, and stir them into freshly cooked spaghetti with some crisply fried crumbled ham or bacon or shredded prosciutto, and you have spaghetti carbonara. Argument continues over whether cream is beaten with the eggs, or not. Do as it pleases you.