"Ms P" > wrote in message
...
>
> > wrote in message
> ...
>> Ham at 250F and au gratin potatoes at 375f.
>> What should I do?
>
> I would put them both in at 325 or even 350. The ham will cook quicker
> and the potatoes a little slower. The temp for either one isn't critical.
>
> Ms P

Not true - that depends on the mass (weight) of the ham verses the mass of
the potatoes.

Dimitri