Spinach & Cheese Strata
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Layered with spinach, cheese, and bread, and soaked in a savory custard, this make-ahead strata is ideal for entertaining.
A strata is a layered casserole made with bread, eggs, cheese, and sometimes vegetables or meat (strata means layers). Think of it as a savory bread pudding or breakfast casserole. This spinach version is richly flavored with Gruyère, Parmesan, and Dijon mustard. It’s the perfect vegetarian brunch dish to feed a crowd. You do all of the preparation the night before, let the strata rest in the fridge overnight, then pop it in the oven in the morning. As it bakes, it puffs up like a cheese soufflé, making it a real showstopper. The strata does fall a bit as it cools, but it’s still impressive. For an elegant brunch, serve the strata with bacon (for perfectly crispy bacon, learn how to cook bacon in the oven), a strawberry & orange fruit salad, and mimosas.
Table of Contents
What You’ll Need To Make Spinach & Cheese Strata
Before we get started, a few words about the ingredients. It’s important to use good quality cheese. The recipe calls for a combination of Gruyère and Parmigiano-Reggiano cheese, but since they are both expensive, feel free to substitute other good melting cheeses with bold flavor, like extra-sharp cheddar. The recipe is pretty flexible, so you can play around with different sautéed vegetables depending on what you have on hand. Some cooked sausage or pancetta would be a nice addition; just be sure to reduce the salt in the recipe to a scant teaspoon or the strata will be way too salty.
Be sure to squeeze all of the water out of the spinach. Take your time; it’s important to get it all out or the strata will be watery.
Step-By-Step Instructions
Melt the butter in a skillet over medium heat.
Add the onions and cook, stirring frequently, until soft and translucent, about 5 minutes.
Add the spinach and garlic and cook a few minutes more.
Layer a third of the cubed bread in a buttered 3-quart or 9×13-inch baking dish.
Top with a third of the spinach.
Followed by a third of each cheese.
Repeat layering twice, ending with the cheese.
Make the custard by combining the whisked eggs, half-and-half-Dijon mustard salt, pepper and nutmeg.
Whisk evenly to combine.
Pour evenly over top of the strata, then cover and refrigerate for at least one hour or overnight.
Bake for about 70 to 80 minutes, until puffed, set and golden all over.
Note: My starting point for this recipe was this popular strata originally published in Gourmet magazine. I increased the spinach; amped up the flavor by adding garlic and increasing the salt; swapped the milk for half-and-half; and reduced the baking temperature from 350°F to 325°F for a creamier texture.
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Spinach & Cheese Strata
Layered with spinach, cheese, and bread, and soaked in a savory custard, this make-ahead strata is ideal for entertaining.
Ingredients
- 1 pound bag chopped frozen spinach, thawed and squeezed as dry as possible
- 3 tablespoons unsalted butter
- 1 large yellow onion, chopped (about 2 cups)
- 3 garlic cloves, minced
- 12 ounces (¾ pound) Italian sandwich bread, cut into 1-inch cubes (about 11 slices or 8 cups)
- 6 ounces (1½ cups) coarsely grated Gruyère
- 2 ounces (⅔ cup) finely grated Parmigiano-Reggiano
- 9 large eggs
- 2¾ cups half-and-half
- 2 tablespoons Dijon mustard
- 1¾ teaspoons salt
- ¾ teaspoon black pepper
- ¼ teaspoon ground nutmeg
Instructions
- Melt the butter in a large skillet over medium heat. Add the onion and cook, stirring frequently, until soft and translucent, 4 to 5 minutes. Add the garlic and drained spinach and cook 2 minutes more. Set aside.
- Butter a 3-quart or 9x13-inch baking dish. Spread one third of the bread cubes in the dish and top evenly with one third of spinach mixture. (Try to break it up as much as possible so there are no huge clumps of spinach.) Sprinkle with one third of each cheese. Repeat layering twice, ending with cheeses.
- In a large bowl, whisk the eggs. Add the half-and-half, mustard, salt, pepper, and nutmeg and whisk until well combined. Pour the custard mixture evenly over the strata. Cover the strata with plastic wrap and chill for at least 1 hour or overnight.
- Preheat oven to 325°F. Bake the strata, uncovered, until puffed, set and golden brown all over top, 70-80 minutes. Let stand 10 to 15 minutes before serving. It will settle a bit as it cools.
- Note: The cook time is based on the strata going immediately from the fridge to the oven. If it sits out at room temperature before baking, the cook time will be about 10 minutes less.
Nutrition Information
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- Per serving (8 servings)
- Calories: 483
- Fat: 30g
- Saturated fat: 16g
- Carbohydrates: 30g
- Sugar: 4g
- Fiber: 4g
- Protein: 25g
- Sodium: 1117mg
- Cholesterol: 280mg
This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.
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I love this dish! Made this for brunch and lunch both. I tweaked it a little by adding broccoli, and/ or grilled chicken. Turned out really well. Everybody loved it.
I made this for a brunch baby shower and it was perfect. I got so many complements on it. Served with a pound/coffee cake and fruit salad.
I wanted to like this recipe and was so excited to try it. I followed the directions carefully but this casserole did not impress my family. Cooking time, straight out of the refrigerator, was too long. I was a little embarrassed that no one wanted to eat or even try it. I ate a small portion because I didn’t want to be wasteful but I threw the remainder of it away.
This is fantastic! I greased the pan with pesto and used ciabatta bread. This is very delicious!
Delicious recipe, Jen. Made it with frozen spinach but now would like to make it with sauteed fresh spinach. Any idea how much fresh spinach it would take? I like a little more spinach. Or maybe it wouldn’t work. Thank you for great workable recipes and fresh ideas.
Glad you like the recipes! Yes, fresh spinach will work here; you’ll need about 1.5 lbs. Just make sure you drain it like you would with the frozen spinach.
Excellent breakfast casserole. My family loved it. I used grueyere instead of fontina since I mistakenly thought I had fontina on hand and did not. Excellent!
I had been wanting a strata recipe for awhile and recently made this one. It is definitely a keeper! I froze a section of it to take to my sister who is vegetarian. It freezes well. Only change I did for convenience was I used minced garlic in a jar, and instead of Gruyere cheese I substituted a soft Swiss cheese I had on hand already. I will be making this time and time again!
Really love your recipes, but being in the UK i am sometimes confused about some of the ingredients. Is half and half milk or cream, presumably low fat?
Hi Jane, Glad you like the recipes. 🙂 Yes, half and half is exactly that – half milk and half cream. In the UK, I believe it’s referred to as half cream. Hope that helps!
I made this strata for a brunch we hosted in November. My husband and our group of friends loved it so much that when a friend organized a Christmas brunch in December, she asked me to make it again. It’s that good!
This was delicious – and a nice change from the heavy meat strata we’ve always had at Christmas. Used ciabatta rolls. The texture was creamier than I’ve had before – and it tasted lighter (never mind all the cheese and half and half!). Have a family member who hates onion. Another person doesn’t like meat, and I was worried it would be bland without the onion. I did use the garlic and it was plenty flavorful. This will be a new regular holiday dish – it suits the vegetarians and the “I hate onions” crowd too! Try it!