HELP! Element gone in one oven - in what order should I cook this meal?

[BettyButterknife]

One side of the double oven is now out of action, ffs.. I'm making a dauphinoise which takes and hour and a half at 160C, and a wellington which takes 45 minutes at 220C. So not exactly compatible! I think I should make the dauph first - is that sensible?

I would think so. You can always cook it until the potato is done but it isn't too brown on top. Then you can pop it back for a couple of minutes to brown it before serving.