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For all its elegance, this breakfast casserole is simple to put together in advance for guests or special occasions.
By
Jasmine Smith
Jasmine Smith
Jasmine Smith is a recipe developer and tester for the Dotdash Meredith Food Studios in Birmingham, Alabama, and her work has been published in Southern Living, EatingWell, RealSimple, Food & Wine Magazine, MyRecipes, Health, and Simply Recipes.
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Updated January 23, 2024
As beloved as breakfast casseroles are, they can get into a rut. Sausage, cheddar cheese, perhaps a few token vegetables. If you’d like to shake things up, here’s a sophisticated yet simple breakfast casserole that’ll grab everyone’s attention in the most delightful way.
Adding chopped frozen spinach, Parmesan cheese, and creamy mascarpone elevates this casserole practically to dinner party fare. English muffins stand in for the bread cubes, making for a stunning presentation. Serve it for brunch, a luncheon, or any occasion where you want to impress but don’t want to labor in the kitchen.
Make Ahead
You’ll need to allow an hour for the assembled casserole to rest before you bake it. Use that to your advantage; you can assemble and refrigerate the casserole up to 12 hours before baking.
Related
Spinach Florentine Breakfast Casserole
Prep Time30 mins
Cook Time55 mins
Chill Time60 mins
Total Time2 hrs 25 mins
Servings6to 12 servings
Ingredients
1 (10-ounce) package frozen chopped spinach, thawed and drained
1 tablespoon olive oil, plus more for greasing
1 medium yellow onion, chopped (about 1 cup)
3 clove garlic, finely chopped
1 (8-ounce) container mascarpone cheese (about 1 cup)
4 ounces Parmesan cheese, grated on a Microplane (about 1 cup), divided
2 teaspoons kosher salt, divided
1 teaspoon freshly ground black pepper, divided
10 large eggs
1 2/3 cups half-and-half
1/4 teaspoon crushed red pepper
6 English muffins, split
Method
Prep the spinach:
Place the spinach on a clean kitchen towel and squeeze firmly over the sink to remove as much liquid as possible. Set aside.
Cook the onion, garlic, and spinach:
Heat the oil in a large skillet over medium-high heat. Add the onion and cook, stirring occasionally, until translucent, about 5 minutes. Add the garlic; cook, stirring often, until fragrant, about 30 seconds. Stir in the spinach; cook, stirring often and breaking up with a wooden spoon, until it looks dried out, about 2 minutes.
Set aside to cool slightly, about 5 minutes.
Add the cheese and season:
Reserve 1/4 cup of the spinach mixture. Transfer the remaining spinach mixture to a medium bowl and add mascarpone cheese, 1/2 cup of Parmesan, 1/2 teaspoon salt, and 1/2 teaspoon black pepper. Stir until well combined and set aside.
Assemble the casserole:
Whisk the eggs, half-and-half, crushed red pepper, reserved 1/4 cup spinach mixture, 1/4 cup Parmesan, remaining 1 1/2 teaspoons salt, and 1/2 teaspoon black pepper in a large bowl until well combined.
Lightly grease a 13x9-inch baking dish. Arrange the bottom halves of the English muffins in the dish in three rows of two. Evenly spread the spinach-mascarpone mixture over the muffins. Cover with the top English muffin halves. Pour the egg mixture over the casserole, then press down on the English muffins to submerge. Sprinkle with remaining 1/4 cup Parmesan.
Rest:
Cover the dish with foil and refrigerate for at least 1 hour or up to 12 hours.
Bake and serve:
Preheat the oven to 350°F. Uncover and bake the casserole in the preheated oven until just set and the tops of the English muffins are golden brown, about 45 minutes. Let the casserole cool 10 minutes before serving.
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Nutrition Facts (per serving) | |
---|---|
433 | Calories |
26g | Fat |
38g | Carbs |
13g | Protein |
Show Full Nutrition Label
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Nutrition Facts | |
---|---|
Servings: 6to 12 | |
Amount per serving | |
Calories | 433 |
% Daily Value* | |
Total Fat 26g | 33% |
Saturated Fat 10g | 49% |
Cholesterol 206mg | 69% |
Sodium 757mg | 33% |
Total Carbohydrate 38g | 14% |
Dietary Fiber 2g | 7% |
Total Sugars 19g | |
Protein 13g | |
Vitamin C 2mg | 12% |
Calcium 195mg | 15% |
Iron 2mg | 12% |
Potassium 280mg | 6% |
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. |
Nutrition information is calculated using an ingredient database and should be considered an estimate. In cases where multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.