What I have recently begun to do is to make a small batch of whatever it is I am questioning about freezing, and, well, freeze it. I'll leave it in the freezer for a week or so and give 'er a try.
Today, I am going to make some ricotta stuffed giant shells and see how they taste after being in the freezer. I would add the sauce (also frozen) after both are defrosted and bake it up from there.
And for me, no matter what "they" say, raw eggs do not freeze well, in the shell or not. This ricotta cheese is mixed with a bunch of eggs (raw)...that might be the weak link in today's experiment, although I've only frozen eggs NOT included in a recipe.