The cayenne and dry mustard add some spice to this dish. Adjust to suit your taste. You can also serve this with a side of salsa. Also, I have made it with low-fat options (egg beaters, low fat milk, fat free half and half) and all have seemed to turn out well. This needs to sit in the fridge overnight (which is why the prep time looks so long!).
Notes from the Test Kitchen:
This recipe caught our eye because you prepare everything the night before. In the morning, just bake it! This casserole is super flavorful. Perfect if you're having house guests and need an easy breakfast or hosting a brunch.