El Rey may cater mostly to weekend partiers and yuppies looking to get their Mexican or Cuban fix, but when it comes to slinging breakfast tacos, the chain taqueria is tops. The jam-packed flour or corn tortillas come with fluffy eggs and choice of potato, bacon, ham or a mix of onion, chile pepper and tomato hunks. Off-menu, spicy chorizo is often available. The green salsa is thin and tart, with a great kick to start off the morning. Check out the eatery's colorful interiors and listen to Mexican crooners singing over the loudspeakers as you wait for your freshly made tacos. And at $1.65 a pop, you'll see why folks are lining up out the door most mornings to get their much-needed dose.