This past holiday season I experimented with many easy breakfast casserole recipes. But there was one that stood out in simplicity and taste, that's the Best Make Ahead Potato Breakfast Casserole. You won't find better.
Cheeseburger Casserole | Skinnytaste. Could add some other veg (mushrooms, and maybe grated zucchini or chopped spinach), and maybe some bbq sauce and bacon crumbles! Oh, worcester sauce too! And maybe reduce the tomato paste a tad.