The Ameraucanas do all have muffs and beards like was mentioned. The Easter Eggers are Ameraucana crosses, mixes, so they usually do too, but since they aren't a pure breed, it's probably possible for them to not have them too, especially if they're a 2nd generation outcross.
Your chicken is colored just like one of my Easter Eggers, just doesn't have her muffs and beard.
Like the other poster said, it's the blue or blue-green eggs that give them that name anyway, so if you get an egg like that, I'd think that it would be an EE, no matter what the bloodline or the coloration.