Eggs Florentine Casserole Recipe with Spinach and Cheese

By:

Thyme Louise

Published:

August 14, 2025

[grow_share_buttons]

Jump to Recipe·Print Recipe

Why You’ll Love This Spinach Florentine Breakfast Casserole

If you’re searching for a breakfast dish that combines nutrition, flavor, and convenience, look no further than this Spinach Florentine Breakfast Casserole. Perfect for busy mornings, weekend brunches, or feeding a crowd, this versatile dish brings together the best of breakfast ingredients in one satisfying pan.

The ease of preparation makes this recipe a lifesaver on hectic days. With just 20 minutes of prep time and straightforward cooking steps, you can create a wholesome meal that will please even picky eaters. The convenience of assembling ahead of time means you can prepare it the night before and simply bake in the morning.

Health benefits abound in this nutritious breakfast option. Packed with iron-rich spinach, protein-packed eggs, and calcium-filled cheese, this breakfast casserole delivers essential nutrients to fuel your day. Research shows that starting your morning with protein-rich foods like eggs helps maintain energy levels and reduces hunger throughout the morning.

This recipe shines with its distinctive flavor profile. The combination of savory sausage, earthy spinach, creamy Swiss cheese, and sharp cheddar creates a harmony of tastes that will become a requested favorite in your household. Whether served for a special occasion or as part of your weekly meal prep, this Spinach Florentine Breakfast Casserole brings restaurant-quality taste to your table without the hefty price tag.

The versatility of this Eggs Florentine casserole means it adapts beautifully to various dietary needs and preferences. From breakfast meetings to holiday gatherings, this dish serves as a comforting centerpiece that brings people together around the breakfast table.

Essential Ingredients for Spinach Florentine Breakfast Casserole

A great breakfast casserole starts with quality ingredients. For this Spinach Florentine Breakfast Casserole recipe with spinach and cheese, you’ll need the following items:

1 pound bulk pork sausage
2 tablespoons butter
1 large onion, chopped
1 cup sliced fresh mushrooms
1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry
12 large eggs
2 cups 2% milk
1 cup shredded Swiss cheese
1 cup shredded sharp cheddar cheese
1/4 teaspoon paprika

Each ingredient plays a crucial role in creating the perfect balance of flavors and textures. The pork sausage provides a savory base that complements the vegetables perfectly. When selecting sausage, consider your spice preference mild works well for most palates, but hot sausage can add an extra kick if you enjoy some heat.

Fresh vegetables make a significant difference in this breakfast casserole with cheese. The onion and mushrooms add depth and umami, while the spinach contributes color, nutrients, and a pleasant earthy note. Properly preparing the spinach by thawing and thoroughly squeezing out excess moisture is essential to prevent a watery casserole.

The combination of eggs and milk creates a rich, custardy base that holds everything together. Using 2% milk provides creaminess without excessive fat, though you can adjust based on your dietary preferences. The blend of Swiss and sharp cheddar cheese offers both melting qualities and bold flavor don’t substitute these with milder cheeses if you want the authentic taste experience.

Special Dietary Options

This Spinach and cheese casserole easily adapts to various dietary requirements:

dairy-free: Use plant-based milk alternatives and dairy-free cheese substitutes. Nutritional yeast can add a cheesy flavor without dairy.
lower-carb: Reduce the amount of onion and mushrooms slightly, and ensure your sausage doesn’t contain fillers.
higher-protein: Add an extra egg or two, or include additional cooked bacon or turkey sausage.

For our weekend gatherings, I prepare this comforting dish with whatever herbs are fresh from the garden, but feel free to experiment with your favorite seasonings to make it your own family tradition.

How to Prepare the Perfect Spinach Florentine Breakfast Casserole: Step-by-Step Guide

Mastering this Eggs Florentine casserole is straightforward when you follow these detailed instructions. The process flows smoothly from preparation to baking, resulting in a delicious breakfast that’s sure to impress.

Preparation Overview

Before you begin cooking, gather all ingredients and equipment. You’ll need a large skillet, a 13×9-inch baking dish, a whisk, and basic utensils. Proper preparation makes the cooking process smooth and enjoyable.

Preparation Time	Cooking Time	Yield
20 minutes	30 35 minutes	12 servings

Cooking Instructions

Preheat your oven to 350°F (175°C) and grease a 13×9-inch baking dish.
In a large skillet, cook the bulk pork sausage over medium heat until no longer pink, about 6 8 minutes. Break it into crumbles as it cooks. Once cooked, drain the excess fat and transfer the sausage to the prepared baking dish.
In the same skillet, heat butter over medium-high heat. Add the chopped onion and sliced fresh mushrooms. Cook and stir until tender, approximately 3 5 minutes.
Add the thawed and thoroughly squeezed spinach to the skillet with the vegetables. Stir until combined and heated through.
Spoon the vegetable mixture over the sausage in the baking dish, spreading it evenly.
In a large bowl, whisk together the 12 large eggs and 2 cups of 2% milk until well blended.
Pour the egg mixture evenly over the vegetables and sausage in the baking dish.
Sprinkle the shredded Swiss cheese and shredded sharp cheddar cheese over the top of the casserole, followed by the paprika.
Bake uncovered for 30 35 minutes, or until the center is set and a food thermometer reads 165°F (74°C).
Remove the casserole from the oven and let it stand for 10 minutes before serving. This resting time helps the casserole set and makes cutting into portions easier.

Pro tip: The casserole is done when a knife inserted near the center comes out clean. This visual indicator is more reliable than time alone, as oven temperatures can vary.

This step-by-step process for how to make Spinach Florentine breakfast casserole ensures consistent results every time. The recipe builds layers of flavor, from the savory sausage base to the vegetable medley and finally the cheesy egg topping.

Dietary Substitutions to Customize Your Spinach Florentine Breakfast Casserole

One of the best features of this versatile dish is how easily it adapts to different dietary needs and preferences. Whether you’re accommodating allergies, specific eating plans, or simply using what’s available in your kitchen, these substitutions will help you create a customized version that everyone can enjoy.

Protein and Main Component Alternatives

The pork sausage in this recipe provides a savory foundation, but several alternatives work well:

Vegetarian option: Replace the sausage with plant-based sausage crumbles, tempeh, or extra vegetables like bell peppers and zucchini.
Poultry alternative: Use ground turkey or chicken sausage for a leaner protein source.
Meat-free protein: Incorporate cooked lentils, black beans, or chickpeas for plant-based protein with a satisfying texture.

Dairy Modifications

For those with dairy sensitivities or preferences:

Milk alternatives: Replace 2% milk with almond milk, oat milk, soy milk, or coconut milk. Note that some alternatives may affect the final texture slightly.
Cheese substitutions: Use dairy-free cheese shreds made from nuts or soy. Nutritional yeast can also add a cheesy flavor without dairy.
Butter alternative: Coconut oil, olive oil, or vegan butter can replace regular butter without compromising flavor.

Vegetable, Sauce, and Seasoning Modifications

Personalize your Spinach and cheese breakfast casserole recipe with these vegetable and seasoning options:

Leafy greens: While spinach is traditional, kale, Swiss chard, or collard greens can be substituted for variety in nutrients and flavor.
Additional vegetables: Consider adding diced bell peppers, tomatoes, or broccoli for extra color and nutrition.
Herb variations: Fresh basil, oregano, thyme, or dill can complement the existing flavors. Add about 1-2 teaspoons of chopped fresh herbs or 1/2 teaspoon dried herbs.

These substitutions help you create a nutritious, delicious breakfast casserole that meets your specific dietary needs while maintaining the comforting essence of the original recipe. For more morning meal inspiration, check out our high-protein breakfast ideas that pair perfectly with this casserole.

Mastering Spinach Florentine Breakfast Casserole: Advanced Tips and Variations

Once you’ve mastered the basic recipe, you can elevate your Spinach Florentine breakfast casserole recipe with these professional tips and creative variations. These techniques will help you achieve restaurant-quality results and personalize the dish to your taste preferences.

Pro Cooking Techniques

Preparing the perfect breakfast casserole relies on a few key techniques:

Proper vegetable preparation: Ensure spinach is thoroughly squeezed of excess moisture to prevent a watery casserole. For fresh spinach, quickly wilt it in a hot pan and then squeeze out water.
Egg mixture consistency: Whisk the eggs and milk until completely smooth to ensure even cooking throughout. Overbeating can incorporate too much air; a gentle, thorough whisk is ideal.
Even layering: Distribute ingredients evenly in the baking dish to ensure consistent cooking and flavor in every bite.

Flavor Variations

Customize your casserole with these delicious flavor additions:

Mediterranean twist: Add sun-dried tomatoes, olives, and feta cheese with Italian herbs for a Mediterranean-inspired version.
Southwestern flair: Incorporate diced green chilies, corn, and pepper jack cheese. Top with avocado and cilantro after baking.
Country style: Add diced potatoes, ham, and a touch of Dijon mustard to the egg mixture for a hearty country breakfast.

Presentation Tips

Make your breakfast casserole as beautiful as it is delicious:

Garnishes: Fresh herbs like parsley, chives, or diced green onions add color and freshness. A sprinkle of paprika or smoked paprika enhances visual appeal.
Serving suggestions: Cut into neat squares and serve with a side of fresh fruit, toast, or a simple green salad to balance the rich flavors.
Plating: Use a spatula to remove portions cleanly. For a more elegant presentation, use a round biscuit cutter to create perfectly shaped servings.

Make-Ahead and Freezing Options

This Spinach Florentine Breakfast Casserole is perfect for meal prep:

Refrigerate overnight: Prepare the entire casserole except for baking. Cover tightly and refrigerate for up to 24 hours before baking as directed. You may need to add 5-10 minutes to the baking time.
Freeze unbaked: Assemble the casserole and freeze before baking. Thaw overnight in the refrigerator before baking as directed.
Freeze leftovers: Cut cooled casserole into portions, wrap individually, and freeze for up to 3 months. Reheat in the microwave or oven.

For our weekend gatherings, I prepare this comforting dish with whatever herbs are fresh from the garden, but feel free to experiment with your favorite seasonings to make it your own family tradition.

Nutritional Benefits of Spinach Florentine Breakfast Casserole

This Eggs Florentine casserole not only satisfies your taste buds but also provides impressive nutritional value. According to nutrition experts, starting your day with a protein-rich breakfast helps maintain energy levels and supports overall health. Let’s break down the nutritional profile and benefits of this delicious breakfast option.

Nutritional Information Per Serving

Each serving of this Spinach Florentine Breakfast Casserole provides substantial nutrition to fuel your morning:

Nutrient	Amount	% Daily Value*
Calories	271	14%
Total Fat	20g	26%
Saturated Fat	9g	45%
Cholesterol	226mg	75%
Sodium	344mg	15%
Carbohydrates	6g	2%
Sugars	4g
Fiber	1g	4%
Protein	16g	32%

*Percent Daily Values are based on a 2,000 calorie diet. Your values may be higher or lower depending on your calorie needs.

Key Nutritional Benefits

Protein Power

With 16g of protein per serving, this breakfast casserole helps keep you full and satisfied throughout the morning. The high protein content comes primarily from the eggs and sausage, both of which provide complete proteins containing all essential amino acids. Protein is crucial for muscle repair, immune function, and maintaining steady energy levels.

Rich in Essential Vitamins and Minerals

Spinach, the star ingredient in this dish, is packed with nutrients. It’s an excellent source of vitamins A, C, and K, as well as folate, iron, and calcium. The eggs contribute additional vitamins including B12 and D, while the cheese provides calcium and phosphorus for bone health.

Balanced Macronutrients

This breakfast casserole offers a well-balanced mix of macronutrients. The protein helps with satiety and muscle maintenance, the fats provide energy and help absorb fat-soluble vitamins, and the carbohydrates offer quick energy. This balanced combination helps maintain stable blood sugar levels, preventing energy crashes later in the morning.

Health Considerations

While this Spinach Florentine breakfast casserole recipe offers numerous nutritional benefits, it’s worth noting some dietary considerations:

Sodium content: At 344mg per serving, this dish contains a moderate amount of sodium. Those monitoring sodium intake can use low-sodium sausage and reduce added salt.
Saturated fat: The recipe contains 9g of saturated fat per serving, primarily from the cheese and sausage. For a lower saturated fat option, consider using turkey sausage and reduced-fat cheese.
Cholesterol: Eggs are naturally high in cholesterol, but research shows that dietary cholesterol has less impact on blood cholesterol levels than previously thought for most people.

Overall, this Spinach and cheese breakfast casserole provides a nutritious start to your day, offering a good balance of protein, healthy fats, and essential nutrients. When enjoyed as part of a balanced diet, it can contribute to both satisfaction and wellness.

How to Store Spinach Florentine Breakfast Casserole: Best Practices

Proper storage of your breakfast leftovers ensures food safety and maintains the delicious quality of this dish. Whether you’re meal prepping for the week or saving leftovers from a weekend brunch, following these storage guidelines will help you enjoy your Spinach Florentine Breakfast Casserole at its best.

Refrigeration Guidelines

For short-term storage, refrigeration is the best option:

Cool the casserole to room temperature within 2 hours of cooking to prevent bacterial growth.
Transfer leftovers to airtight containers or cover the baking dish tightly with plastic wrap or aluminum foil.
Store in the refrigerator for 3 4 days maximum. Beyond this timeframe, the quality and safety may decline.
Label containers with the date prepared to help you track freshness.

Freezing Instructions

For longer storage, freezing preserves your breakfast casserole effectively:

Cool the casserole completely before freezing to prevent ice crystals from forming.
Cut the casserole into individual portions for easy thawing and reheating.
Wrap each portion tightly in plastic wrap, then place in a freezer bag or airtight container.
Alternatively, freeze the entire casserole by wrapping it thoroughly in plastic wrap and then aluminum foil.
Label with the name and date of freezing. Store for up to 3 months for best quality.

Reheating Methods

Proper reheating brings back the delicious flavors and textures of your casserole:

Oven method: Preheat oven to 350°F (175°C). Place refrigerated portions in an oven-safe dish, cover with foil, and heat for 15 20 minutes. For frozen portions, increase time to 30 40 minutes or until heated through.
Microwave method: Place individual portions on a microwave-safe plate. Cover with a damp paper towel to retain moisture. Heat on high for 1 2 minutes for refrigerated portions or 3 4 minutes for frozen portions, checking and stirring halfway through.
Skillet method: For a crispy texture, slice refrigerated casserole and pan-fry in a lightly oiled skillet over medium heat for 3 5 minutes per side.

Meal Prep Considerations

This Spinach and cheese casserole lends itself beautifully to meal prep strategies:

Batch cooking: Double or triple the recipe to make multiple casseroles at once. Freeze extras for quick breakfasts throughout the month.
Weekend prep: Assemble the casserole on Sunday morning, but bake fresh each day for optimal freshness and texture.
Portion control: Pre-cut the casserole into individual serving sizes before storing. This makes grabbing a quick breakfast easier and helps with portion management.

Remember to refrigerate leftovers within 2 hours. Store in the refrigerator for 3 4 days or freeze for up to 3 months. The casserole is done when a knife inserted near the center comes out clean.

Following these storage tips ensures your Spinach Florentine Breakfast Casserole remains safe to eat and maintains its delicious quality, making it a convenient option for busy mornings or unexpected guests.

FAQs: Frequently Asked Questions About Spinach Florentine Breakfast Casserole

What ingredients are needed to make a Spinach Florentine Breakfast Casserole?

A Spinach Florentine Breakfast Casserole typically includes fresh or frozen spinach, eggs, cheese (such as mozzarella, Swiss, or Parmesan), milk or cream, onions or garlic for flavor, and bread or hash browns as a base. You can also add seasoning like salt, pepper, and nutmeg. Some recipes incorporate mushrooms or cooked sausage for extra taste. Using wholesome ingredients ensures a nutritious and satisfying breakfast dish.

How do I prepare spinach properly for a Florentine breakfast casserole?

If using fresh spinach, wash it thoroughly and sauté until wilted to remove excess moisture before adding it to the casserole. For frozen spinach, thaw completely and press out any remaining water using a clean towel or paper towels. Removing excess moisture prevents the casserole from becoming soggy and helps it bake evenly.

How long and at what temperature should I bake a Spinach Florentine Breakfast Casserole?

Preheat your oven to 350°F (175°C) and bake the casserole for 35 to 45 minutes. The casserole is done when the eggs are fully set, and the internal temperature reaches at least 160°F (71°C). Inserting a knife or toothpick into the center should come out clean without any liquid egg. Letting it rest for 5 to 10 minutes before serving helps it firm up.

Can I make Spinach Florentine Breakfast Casserole ahead of time and refrigerate it?

Yes, you can prepare the casserole the night before and refrigerate it overnight. Cover it tightly with plastic wrap or foil and store it in the fridge for up to 24 hours before baking. This can save time in the morning and allow flavors to meld. If you have leftovers, store them in an airtight container and consume within 3 to 4 days.

Is Spinach Florentine Breakfast Casserole a healthy breakfast option?

Spinach Florentine Breakfast Casserole can be a healthy choice as it combines protein-rich eggs with nutrient-dense spinach, which is high in vitamins A, C, and K, and minerals like iron and calcium. Using low-fat cheese and minimal added salt can keep calories in check. Adding whole grain bread or serving with fresh fruit balances the meal for sustained energy.