Cooking time and temperature for one oven and two different dishes I want to warm a 9.6lb spiral ham (275- 15 minutes per lb) and cook a macaroni and cheese casserole (375 for about 30-45 min) in the same oven and have them ready at the same time.  How do I do this?
Heat ham at 275.
Remove ham and hold. Covered with foil and maybe towels to hold heat.
Raise oven temp, bake mac &amp; cheese.
Ham should still be warm when mac and cheese done.


If it were me, I'd return the ham to the oven for the last fifteen minutes or so to crisp the skin a bit with the higher temperature.