I made this french toast for brunch this weekend and it was AMAZING, my guests destroyed it. It holds its heat really well, especially if you have one of those insulated carriers for casserole pans.
http://thepioneerwoman.com/cooking/2012/08/baked-french-toast/
Here are my mods, and I think they are a MUST, or else the recipe will be way too rich!
-Use 2% milk not whole
-cut the sugar in the batter in half
-unse only a half stick of butter on the top
-Add fresh ground nutmeg to the batter and the topping
-Add pecans to the topping
-Add cinnamon to the batter