I've made strata a few times before, usually for brunches where I have a number of guests coming over and don't want to spend all my time in the kitchen. I always follow instructions in the recipe; I assemble it the night before, refrigerate overnight, and then let it come to room temperature and bake it in the morning.
I've never had any problems, but I'm planning on making this for New Year's brunch that I'm hosting, and I got to thinking about why I need to let the strata come to room temperature before baking it. (Every recipe I've seen for strata says to let it sit on the counter for at least a half an hour.) I bake mine in a glass casserole dish, so I know that one reason for this is to avoid extreme temperature change that could cause the dish to shatter. However, is there any chemistry or physics reason for this - i.e., would baking it (in a disposable aluminum pan, for instance) straight out of the fridge impact the taste/texture?