Stuffing meat cannelloni and refrigerating to be cooked the next day Is it safe to make uncooked beef cannelloni with cheese and eggs, stuff the raw shells and leave in fridge overnight?  I would put the hot tomatoe sauce over top just before baking.
Is the meat cooked or not ? it's not clear.

I would prepare the stuffing, cook it all and cool it down and stuff the cannelloni and put that in the fridge.

Personally, I would bake it all, sauce included the day before and cool it down and put that in the fridge. (I treat that the same as a lasagna).