What breakfast staple is delicious, is (typically) fast to cook, and will keep you full until lunch? The egg, of course. Keep reading for more than 20 eggy breakfasts that can be made on a busy work day. Most are super speedy and require no advance prep; for the rest, we've included make-ahead tips (e.g. hard-boiling an egg the night before) so you can get your egg on stress-free in the morning.