Eggs never went out of fashion among good cooks, and now with good news on the health front they're back in high style. Souffles and frittatas are all the rage on elegant menus across the country, from the French Laundry in Yountville to the Union Square Cafe in New York, and omelettes are a must for any refined brunch or light summer supper. This classic triad of egg dishes is the cook's secret weaponmarvelously versatile, fast, and easy to whip...