For our Christmas brunch, I make this variation on a classic eggs Florentine recipe, adding sausage and spinach to make a snappy casserole. Sometimes I mix in fresh peppers or green chiles, so play with it. —Karen Weekley, Washington, West Virginia
1Preheat oven to 350°. In a large skillet, cook sausage over medium heat until no longer pink, 6-8 minutes, breaking into crumbles; drain and transfer to a greased 13x9-in. baking dish.
2In same skillet, heat butter over medium-high heat. Add onion and mushrooms; cook and stir until tender, 3-5 minutes. Stir in spinach. Spoon vegetable mixture over sausage.
3In a large bowl, whisk eggs and milk until blended; pour egg mixture over vegetables. Sprinkle with cheeses and paprika. Bake, uncovered, until the center is set and a thermometer inserted in center reads 165°, 30-35 minutes. Let stand 10 minutes before serving.