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Home » Holiday Recipes » Christmas Recipes

SPINACH FLORENTINE BREAKFAST CASSEROLE

Updated: May 3, 2026 · Published: Jul 29, 2025 by Sana Umer · This post may contain affiliate links · Leave a Comment

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This Spinach Florentine Breakfast Casserole is a hearty and wholesome way to start your day. Made with fresh spinach, eggs, cheese, and toasted bread, this recipe is not only satisfying but also packed with flavour and nutrition.

Whether you're preparing breakfast for the family or hosting a weekend brunch, this dish offers convenience and elegance in every bite. It’s oven-baked, which makes it less hands-on and ideal for busy mornings or relaxed gatherings.

In this breakfast casserole, the layers of soft egg mixture soak into golden cubes of bread while the cheese melts beautifully between sautéed spinach. It’s warm, comforting, and keeps well—making it perfect for make-ahead meals.

This dish combines the creaminess of dairy, the earthiness of spinach, and the fluffiness of eggs in a single bite. You’ll love how easy it is to prep the ingredients, assemble the dish, and let your oven do all the magic.

The Florentine twist adds a touch of French inspiration, giving this casserole a rich, yet balanced flavour. Each slice is filling, nutritious, and loaded with greens. It’s a guaranteed hit for any breakfast or brunch table.

WHY YOU WILL LOVE THIS RECIPE

  • Make-Ahead Friendly: Prepare it the night before and bake fresh in the morning for a hassle-free breakfast.

  • Nutritious & Wholesome: Loaded with spinach and eggs, this casserole is rich in protein and vitamins for a balanced start.

  • Crowd-Pleaser: Perfect for feeding a group, whether for brunch, holidays, or overnight guests.

  • Easy to Assemble: Just mix, layer, and bake—no special cooking techniques needed for this simple breakfast dish.

  • Customisable: You can add mushrooms, cooked sausage, or swap cheese types to suit your preferences.

  • Warm & Comforting: Each bite delivers creamy, cheesy, and savoury comfort, ideal for cosy mornings.

  • vegetarian diet Option: A great meat-free breakfast idea that’s still hearty and deeply satisfying.

INGREDIENTS

  • 6 large eggs
  • 2 cups milk
  • 1 teaspoon salt
  • ½ teaspoon ground black pepper
  • 1 tablespoon olive oil
  • 4 cups fresh spinach
  • 2 cups cubed bread (day-old or toasted)
  • 1 cup shredded cheddar cheese
  • ½ cup grated Parmesan cheese
  • ½ teaspoon garlic powder
  • ¼ teaspoon nutmeg

DIRECTIONS

  • Step No.1: Preheat the oven
    Set your oven to 180°C (350°F) and grease a baking dish with benefits of olive oil or nonstick spray.

  • Step No.2: Sauté the spinach
    In a skillet over medium heat, heat olive oil and cook the spinach until wilted, about 2–3 minutes. Set aside to cool slightly.

  • Step No.3: Prepare the egg mixture
    In a large bowl, whisk together eggs, milk, salt, pepper, garlic powder, and nutmeg until well combined.

  • Step No.4: Layer the casserole
    In the prepared baking dish, spread bread cubes evenly. Top with cooked spinach and both cheeses.

  • Step No.5: Pour the egg mixture
    Carefully pour the egg mixture over the layered ingredients, pressing gently to soak the bread.

  • Step No.6: Bake the casserole
    Cover with foil and bake for 30 minutes. Uncover and bake another 15–20 minutes until golden and set.

  • Step No.7: Cool and serve
    Allow the casserole to rest for 10 minutes before slicing. Serve warm for best taste and texture.

TIPS FOR SUCCESS

  • Use Stale Bread: Day-old bread holds up better and gives the casserole more structure and texture.

  • Grease Well: Coat your dish properly to prevent sticking and make cleanup easier.

  • Don’t Overbake: Remove from oven once the centre is just set to keep the eggs from becoming rubbery.

  • Even Layering: Spread ingredients evenly for consistent flavour and texture in every bite.

  • Let It Rest: Resting after baking helps the casserole set and makes slicing cleaner and easier.

  • Cool Spinach Before Mixing: Hot spinach can cook the eggs prematurely—let it cool slightly first.

  • Add Flavour Layers: Try fresh herbs like parsley or chives for added brightness.

VARIATIONS

  • Add Protein: Include cooked sausage, turkey bacon, or diced ham for a meatier version.

  • Cheese Swap: Use mozzarella, Swiss, or goat cheese instead of cheddar for a different cheesy twist.

  • gluten-free diet: Use gluten-free bread cubes to make it suitable for gluten-intolerant guests.

  • Dairy-Free: Use plant-based milk and vegan diet cheese to adapt the recipe for dairy-free diets.

  • Extra Veggies: Add mushrooms, bell peppers, or onions to boost the vegetable content and flavour.

  • Mini Versions: Bake in muffin tins for individual breakfast cups—perfect for meal prep or grab-and-go.

  • Spice It Up: Add crushed red pepper or diced jalapeños if you like your breakfast with a kick.

SERVING AND STORAGE

Serving

Serve warm, topped with fresh herbs or a sprinkle of extra cheese for added appeal and flavour.

Storage

Refrigerate in an airtight container for up to 4 days. Reheat individual portions in the microwave before serving.

FAQ

Can I prepare this casserole ahead of time?

Yes! Assemble the casserole the night before, cover, and refrigerate. Bake in the morning straight from the fridge.

What kind of bread is best for this recipe?

Day-old French bread or sourdough works well. It holds its shape and absorbs the egg mixture nicely.

Can I freeze the casserole?

Yes, freeze baked portions in airtight containers for up to 2 months. Thaw and reheat in the oven or microwave.

Is this recipe suitable for vegetarians?

Absolutely! It's a protein-rich vegetarian meal loaded with eggs, cheese, and spinach.

Can I use frozen spinach instead of fresh?

Yes, just thaw and drain it well before using to avoid excess moisture in the casserole.

This Spinach Florentine breakfast casserole is a classic that brings both nutrition and comfort to the breakfast table.

The balance of hearty eggs, savoury cheese, and fresh spinach makes every bite delicious.

From busy weekdays to holiday brunches, this recipe fits every occasion and is a favourite for its convenience and taste.

Whether you customise it with extra veggies or keep it simple, it’s bound to become part of your regular rotation.

Enjoy it hot out of the oven or as a quick reheated meal during the week—it never disappoints!

SPINACH FLORENTINE BREAKFAST CASSEROLE

Sana Umer
This spinach Florentine breakfast casserole is creamy, cheesy, and packed with fresh spinach and eggs. Perfect for brunch, holidays, or meal prep, it’s hearty, healthy, and easy to make ahead for busy mornings.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 40 minutes mins
Total Time 55 minutes mins
Course Brunch
Cuisine American
Servings 8 serves
Calories 190 kcal

Ingredients
  

For the Casserole:

  • 1 tablespoon olive oil
  • 1 small onion finely chopped
  • 2 cloves garlic minced
  • 6 cups fresh spinach or 1 package frozen, thawed and drained
  • 6 large eggs
  • 1 cup milk or dairy-free alternative
  • 1 cup shredded mozzarella cheese
  • ½ cup grated Parmesan cheese
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper
  • ¼ teaspoon ground nutmeg optional

Instructions
 

Preheat Oven:

  • Preheat oven to 375°F (190°C). Grease a 9x9-inch or similar baking dish.

Sauté Spinach:

  • Heat olive oil in a skillet over medium heat. Add onion and cook until soft, about 3–4 minutes. Add garlic and spinach. Cook until spinach wilts, about 2–3 minutes. Set aside to cool slightly.

Mix the Egg Base:

  • In a large bowl, whisk together eggs, milk, salt, pepper, and nutmeg.

Assemble the Casserole:

  • Stir in mozzarella and Parmesan cheeses, then fold in the sautéed spinach mixture.

Bake:

  • Pour into prepared dish. Bake for 35–40 minutes or until set in the center and lightly golden on top.

Serve:

  • Let rest for 5–10 minutes before slicing. Serve warm.

Notes

Make Ahead:
Assemble the casserole the night before, cover, and refrigerate. Bake fresh in the morning.
Customising Flavours:
Add cooked mushrooms, red peppers, or cooked sausage for extra flavour and variety.
Serving Suggestions:
Serve with toast, fruit salad, or roasted potatoes for a complete breakfast.
Allergy-Friendly Options:
Use dairy-free milk and cheese for a lactose-free version.
Storage Tips:
Store leftovers in the fridge for up to 4 days. Reheat in microwave or oven.
Keyword egg bake, spinach egg casserole, spinach Florentine, vegetarian casserole

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About Sana Umer

I'm Sana Umer — the home cook behind every recipe on For Foodie Friends. I'm a Pakistani-American mom of two based in the US, and I've been cooking seriously for about a decade now, mostly because feeding a family every day is the fastest way to learn how to actually cook.

I'm completely self-taught. I learned by watching my mother in Pakistan, by burning a lot of food in my early years, and by paying attention to which recipes worked and which ones needed fixing. I don't specialize in just one cuisine — I cook the Pakistani dishes I grew up with, the American desserts my kids request, weeknight dinners, holiday roasts, and everything in between.

Every recipe is personally tested in my own kitchen, every word is written by me, and every photo is taken of food I actually made.

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Hi, I'm Sana Umer — the home cook, recipe tester, and writer behind For Foodie Friends.

I'm a Pakistani-American mom based in the US. I learned to cook in two kitchens — my mother's in Pakistan, where I grew up watching whole spices bloom in oil, and my own kitchen now, where I cook for my husband and kids.

Every recipe on this site has been tested in my own kitchen, often more times than I'd like to admit, before it ever made it here. I cook a little bit of everything: the Pakistani comfort food I grew up with, the American desserts my kids beg for, weeknight dinners that need to come together fast, and the holiday spreads that take all day.

If a recipe is on this site, it earned its place. No ghostwriters, no AI shortcuts, no copy-paste from somewhere else — just real recipes from a real kitchen, written to actually work the first time you make them.

Welcome to my corner of the internet.

— Sana

More about me →

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