I agree with smainiac. Bake first. Consider even cutting before freezing. It's much easier to reheat in cut portions than in the entirety. Heat passes through more efficiently, and you have much less risk of over-cooking on the reheat.
Bake it first! Then all you have to do is defrost & reheat for a delicious meal. My mother was the queen of serving pre-cooked and frozen quiches for dinner when I was growing up. Not sure how well uncooked eggs would fare in the freezer anyway.
5 Comments