Every Friday I make a different kind of strata, a.k.a. egg casserole, for the special needs parenting group I I host. I made this simple one a few months back with some leftover mashed potatoes that were looking for a home. It gave the strata a nice creaminess. This dish may be especially appealing for the creative cook who wants to add in leftover ingredients-just be sure that all vegetables are sauteed first! Enjoy!