How well does this recipe do prepared the day before and reheated?

This recipe sounds delicious and I plan on trying it very soon. Has anyone tried adding cheese to the mash or on top in the last few minutes of baking? I may try it both ways before the holidays.

Thank you! I'll prep it tonight and bake it tomorrow. Happy cooking, everyone!

Yes prepare up to the baking point the day before and do the baking the day of serving. I've also made the bacon the day before and just warmed it on top of the casserole about 5 or 10 minutes before it's finished baking.

I would prepared it the day before and then bake it the day of, rather than reheating the day of if possible.

I would hold off making the crumbled bacon and putting on top until the day you're serving it. But I think you could do everything else the day before