Here's the hole in our bathroom ceiling left over from moving a wall:
I don't really know what the proper procedure is on filling something like this in but I got tired of it so I just stuffed a bunch of drywall mud up there.
It's not done yet. It needs another coat and then textured.
There's also cracks around where the tile meets the ceiling
so I stuffed some mud up there too
Hopefully it all turns out ok in the end. :)