Prep ahead salmon lasagne or similar?

[Raera]

I'd like to make a fish/salmon lasagne with a creamy sauce. I've found some recipes but all say cook and serve.
Has anyone made something and kept in the fridge? I'd like to make it the day before so I'm not in the kitchen for ages when my guests arrive.
Many thanks

This one www.sainsburysmagazine.co.uk/recipes/mains/scandi-gravlax-pasta-bake

Thanks

I think a fish pie would be more successful than soggy pasta

Thanks for comments, I was trying to comply with Grandson's request.
It's too hot for "soggy pasta" as above, so am doing a fish pie but with a puff pastry lid instead of mash.