I still miss the now shuttered Flamingo coffee shop for my daily bacon and eggs fix, but this does the trick. Of course, since no meal in Vegas can cost under $20 these days, an American Breakfast (bacon, eggs, hash browns), large iced tea, and a pastry will set you back $20 after tip, but it's a quick bite to eat on the way to the monorail to hit the convention center and it's reliable.
If you're looking for a quick meal the Nook is worth seeking out.