We enjoyed this for an easy make-ahead breakfast. Next time I would adjust the seasonings, though, as my family would have liked the flavor of some herbs (parsley, chives?) instead of the mustard flavor.
This is really good!! Made last night and put in the fridge and got up this morning and put in the oven before DH went to work. Cooked for exactly 1 hour and set up nicely. Will make again and maybe try with cheddar cheese next time for something different. Made for Fall 2009 PAC.