Best way to prepare lasagne ahead for a family gathering?

[JP12345]

I'm catering for a big family gathering where we will all be out (together, at church, I can't get out of it) until everyone arrives at ours absolutely starving, so how do I deal with the lasagne?
Should I cook it in the morning and leave it warm in the oven for 2 hours? Or cook it whilst we're out? (Risky, no?). Defrost or cook from frozen? Or is lasagne a non-starter???
I'm tying myself in knots with the questions, please someone put me out of my misery....

This is exactly what I would do. Cook it the day before. Cover with foil and refrigerate overnight. As soon as you get back from church warm it through in the oven. You leave first and get it whacked in the oven and by the time all the stragglers have arrived, taken coats off and settled down, it’ll be ready. I don’t think people will expect the host to have hot food on the table the second they walk in.

I also think it’s less sloppy the day after, and tastes better.

This is what I’d do too. Don’t try and cook or reheat a huge one, especially not from frozen. That’s much more risky for food poisoning than leaving a precooked and refrigerated one out while you’re at church and then heating it for an hour when you get in.

M&S make a rather nice lasagna 😋