From my Pinterest board: This I will try and let you know how it turns out. The original blog post from Amy's Kitchen can be found here: http://www.amyskitchencreations.blogspot.com/2012/05/eggs-for-breakfast-sandwiches.html
It worked fine. The eggs were tasty and kept in the fridge well. One important thing I can add is to prick the egg yolk when reheating in a microwave. The first reheat went as planned but the next egg exploded, so beware. Amy was correct, they make a tasty, quick sandwich. Go ahead and give it a try, you won't be disappointed.