As the sun rises on Easter morning, the kitchen fills with the aroma of sizzling sausage and fresh greens, setting the stage for a lovely gathering. Today, I’m excited to share Martha Stewart’s Creamy Easter Breakfast Casserole, a dish that combines rich custard, fluffy bread, and a delightful medley of savory flavors. This easy-to-make casserole not only brings a festive charm to your brunch table but also allows you to savor precious moments with family without spending all morning in the kitchen. Packed with hearty ingredients like sausage, sautéed vegetables, and Gruyère cheese, it’s the ultimate crowd-pleaser that everyone will eagerly look forward to. Curious about how to create this holiday masterpiece? Let’s dive in!

Why is this casserole a must-try?
Simplicity at its best: This recipe requires minimal effort, allowing even beginner cooks to achieve an impressive dish with ease.
Savory delight: With layers of rich flavors from sausage, sautéed veggies, and creamy Gruyère, every bite is an explosion of deliciousness.
Crowd-pleaser: Perfect for family gatherings or holiday brunches, this casserole serves 8-10 people, making it ideal for big celebrations.
Versatile options: Easily swap ingredients such as using turkey sausage or swapping cheeses to cater to your preferences.
Make-ahead convenience: Prepare it the night before to enhance flavors, giving you more time to enjoy the festivities. For more hearty casseroles, check out my Spicy Southern Casserole or Chicken Stuffing Casserole recipes!
Martha Stewart Easter Breakfast Casserole Ingredients
Discover the perfect blend of flavors for your holiday celebration!
For the Base
- Olive Oil – Ideal for sautéing sausage and vegetables, enhancing browning.
- Pork Sausage – Provides a savory flavor; turkey sausage can be used for a lighter option.
- Cremini Mushrooms – Adds depth of flavor; substitute with button mushrooms if needed.
- Onion – Sweetness and aroma are key; shallots can replace for a milder taste.
- Fresh Spinach – Adds color and nutrients; frozen spinach works too, just drain it well.
- Sturdy White Bread – Essential for structure and custard absorption; use slightly stale bread or lightly toasted fresh slices.
For the Custard
- Eggs – The binding agent that forms the custard; essential for achieving the right texture.
- Whole Milk & Heavy Cream – Boosts the richness and creaminess; consider reduced-fat milk for a lighter version.
- Dijon Mustard – Adds a tangy kick; yellow mustard can be a milder alternative.
- Nutmeg – Infuses warmth and depth; feel free to skip if not available.
- Salt & Black Pepper – Essential seasoning; adjust according to taste.
For the Topping
- Gruyère Cheese – Delivers a creamy texture and savory bite; sharp cheddar can be used for a different flavor profile.
This delicious Martha Stewart Easter Breakfast Casserole is sure to be the highlight of your holiday brunch! Enjoy crafting this delightful dish filled with warmth and love.
Step‑by‑Step Instructions for Martha Stewart Easter Breakfast Casserole
Step 1: Brown the Sausage
In a large skillet, heat 1 tablespoon of olive oil over medium-high heat. Add 1 pound of pork sausage, breaking it apart with a spatula. Cook for about 5-7 minutes, stirring occasionally, until the sausage is golden brown and has released its savory aroma. Once done, remove it from the skillet and set it aside, leaving the drippings for the next step.
Step 2: Sauté the Vegetables
In the same skillet, add 1 medium chopped onion and 8 ounces of sliced cremini mushrooms. Sauté for 5-7 minutes until the onions are translucent and the mushrooms are tender. Then, add 5 ounces of fresh spinach, stirring until wilted, approximately 2-3 minutes. This mixture will add depth and flavor to your Martha Stewart Easter Breakfast Casserole.
Step 3: Prepare the Baking Dish
Grease a 9×13-inch baking dish with cooking spray or a bit of olive oil to prevent sticking. Begin layering your casserole by adding half of the 1 pound of cubed sturdy white bread to the bottom of the dish. Next, layer half of the cooked sausage, half of the sautéed vegetable mixture, and half of the 8 ounces of shredded Gruyère cheese. Repeat these layers for a satisfying finish.
Step 4: Whisk the Custard Ingredients
In a large mixing bowl, whisk together 8 large eggs, 2½ cups of whole milk, and 1 cup of heavy cream until smooth. Stir in 1 tablespoon of Dijon mustard, ¼ teaspoon of freshly grated nutmeg, 1 teaspoon of salt, and ½ teaspoon of black pepper. This rich custard is key for the creamy consistency of your Martha Stewart Easter Breakfast Casserole, so blend well to combine.
Step 5: Pour and Soak
Carefully pour the egg mixture over the layered ingredients in the baking dish, ensuring even coverage. Gently press down on the bread to help it soak up the custard. Once fully combined, cover the dish with plastic wrap and refrigerate for at least 4 hours, preferably overnight, to let the flavors meld and the bread absorb the liquid.
Step 6: Bake the Casserole
Preheat your oven to 350°F (175°C). Remove the casserole from the refrigerator and let it sit at room temperature for 30 minutes before baking. Bake uncovered for 50-60 minutes until puffed and golden brown, with a knife inserted in the center coming out clean, indicating that the custard is set.
Step 7: Rest and Serve
Once baked, let the casserole rest for 10 minutes to stabilize before slicing. This waiting step helps the layers hold together beautifully. Serve warm, and enjoy the delightful flavors of your Martha Stewart Easter Breakfast Casserole with loved ones during your festive gathering.

Variations & Substitutions for Martha Stewart Easter Breakfast Casserole
Feel free to get creative and tailor this casserole to your family’s tastes and dietary needs!
- Turkey Sausage: Swap out pork sausage for turkey sausage for a lighter but still flavorful option without sacrificing taste.
- Vegetarian Version: Use plant-based sausage and load up on veggies like bell peppers and zucchini for a colorful, meat-free dish that everyone can enjoy.
- Cheese Swap: Replace Gruyère cheese with sharp cheddar or creamy Monterey Jack to explore different flavors that can make this casserole uniquely yours.
- Add Spices: For a hint of spice, toss in diced jalapeños or sprinkle red pepper flakes into the sausage mixture before sautéing.
- Different Bread: Experiment with brioche or sourdough instead of sturdy white bread for varied texture and a delightful twist on flavor.
- Dairy-Free Option: For a dairy-free version, try coconut milk or almond milk, and use dairy-free cheese alternatives to keep things creamy without the lactose.
- Herb Boost: Enhance flavor by adding fresh or dried herbs like thyme or basil to the egg mixture for a fragrant twist that’s perfect for spring.
- Extra Veggies: Toss in additional vegetables like roasted red peppers or asparagus to amp up the nutrition and add delightful textures.
Love brunch casseroles? Be sure to check out my Ravioli Casserole Cheesy or Pimento Cheese Hash Brown Casserole for more cozy options!
What to Serve with Martha Stewart Easter Breakfast Casserole
As you gather around the table for a joyful celebration, consider these delightful pairings to elevate your dining experience.
- Fresh Fruit Salad: Bright and refreshing, a mix of seasonal fruits adds a sweet contrast to the savory casserole.
- Mixed Greens Salad: A simple green salad with a tangy vinaigrette can lighten the richness of the casserole, making each bite feel balanced and fresh.
- Roasted Asparagus: Tender, roasted asparagus seasoned with lemon and olive oil complements the creamy texture, offering a slight crispness and vibrant flavor.
- Crispy Bacon: For a savory crunch, crispy bacon strips provide a deliciously salty accompaniment, elevating the brunch experience.
- Herbed Yogurt Dip: A light, herby yogurt dip can serve as a cooling counterpoint to the richness of the casserole; perfect for spreading on warm bread!
- Sparkling Mimosa: Delightful and celebratory, a refreshing mimosa made with fresh orange juice and sparkling wine enhances the festive vibe.
- Coffee or Tea: A warm beverage like freshly brewed coffee or aromatic tea rounds out the meal, creating a cozy and inviting atmosphere.
- Mini Cheesecake Bites: To finish on a sweet note, individual cheesecake bites provide a creamy, indulgent dessert that complements the richness of your meal.
Storage Tips for Martha Stewart Easter Breakfast Casserole
- Fridge: Store any leftover casserole in an airtight container in the refrigerator for up to 3 days. Cover it well to maintain its creamy texture and flavor.
- Freezer: This casserole freezes beautifully for up to 2 months. Wrap it tightly in plastic wrap or foil, then place it in a freezer-safe container.
- Thawing: When ready to enjoy, thaw the casserole in the refrigerator overnight. This gradual thaw ensures that the consistency remains rich and creamy.
- Reheating: To reheat, bake the casserole at 350°F (175°C) for about 25-30 minutes or until warmed through. You can cover it with foil to prevent overbrowning.
Expert Tips for Martha Stewart Easter Breakfast Casserole
- Stale Bread Best: Use slightly stale bread to enhance custard absorption, ensuring every bite is rich and creamy.
- Refrigerate Overnight: Allowing the casserole to sit overnight in the fridge intensifies the flavors and improves texture—don’t skip this step!
- Avoid Overbaking: Keep an eye on baking time; check for doneness by inserting a knife in the center. It should come out clean for a perfect creamy consistency.
- Enhance with Sides: Serve slices with fresh fruit or a light salad to brighten and balance the meal, adding freshness alongside your casserole.
- Customize Texture: If you prefer a firmer texture, slightly reduce the amount of heavy cream or add more bread cubes for structure.
Make Ahead Options
These Martha Stewart Easter Breakfast Casserole preparations are perfect for busy cooks looking to save time on holiday morning! You can prepare the entire casserole up to 24 hours in advance, allowing the flavors to meld beautifully. Simply follow the recipe through to the point of refrigerating it (step 5), covering it tightly with plastic wrap to prevent drying out. To ensure it maintains quality, let it sit at room temperature for about 30 minutes before baking (step 6). When it’s time to cook, simply bake it straight from the fridge for 50-60 minutes until golden brown and set. Enjoy stress-free mornings, knowing that a delicious breakfast is ready to delight your family!

Martha Stewart Easter Breakfast Casserole Recipe FAQs
What kind of bread is best for this casserole?
You want a sturdy white bread that can absorb the custard. I recommend using slightly stale bread, as it soaks up the mixture better. If you only have fresh bread, lightly toast it first to achieve that desired texture.
How long can I store leftovers?
Leftover Martha Stewart Easter Breakfast Casserole can be refrigerated for up to 3 days. Be sure to cover it well with plastic wrap or store it in an airtight container to keep it fresh and creamy!
Can I freeze this casserole?
Absolutely! You can freeze the casserole for up to 2 months. To do this, wrap it tightly in plastic wrap or foil and place it in a freezer-safe container. When you’re ready to enjoy it, thaw it in the refrigerator overnight before reheating.
What’s the best way to reheat the casserole?
Reheat your casserole by baking it in a preheated oven at 350°F (175°C) for about 25-30 minutes. If you notice it starting to brown too quickly, cover it lightly with foil to keep it moist while heating through.
Any tips for avoiding sogginess in the casserole?
Certainly! Ensure your bread is slightly stale; this is key for optimal custard absorption. Also, make sure to press down on the bread gently after pouring in the egg mixture to help it soak without becoming too mushy.
Is it possible to make this recipe gluten-free?
Yes, for a gluten-free option, simply substitute the sturdy white bread with gluten-free bread that you enjoy. Be sure to check the labels on your sausage and cheese too, to ensure they don’t contain gluten. Enjoy tailoring this delicious dish to all dietary preferences!

Martha Stewart Easter Breakfast Casserole: A Creamy Delight
Ingredients
Equipment
Method
- In a large skillet, heat 1 tablespoon of olive oil over medium-high heat. Add 1 pound of pork sausage, breaking it apart with a spatula. Cook for about 5-7 minutes until golden brown. Remove and set aside.
- In the same skillet, add 1 medium chopped onion and 8 ounces of sliced cremini mushrooms. Sauté for 5-7 minutes until translucent. Add 5 ounces of fresh spinach, stirring until wilted, about 2-3 minutes.
- Grease a 9x13-inch baking dish. Layer half of 1 pound of cubed sturdy white bread, followed by half of the cooked sausage, half of the sautéed vegetables, and half of 8 ounces of shredded Gruyère cheese. Repeat layers.
- In a large mixing bowl, whisk together 8 large eggs, 2.5 cups of whole milk, and 1 cup of heavy cream until smooth. Stir in 1 tablespoon of Dijon mustard, 0.25 teaspoon of nutmeg, 1 teaspoon of salt, and 0.5 teaspoon of black pepper.
- Pour the egg mixture over the layered ingredients. Gently press down on the bread to help it soak. Cover with plastic wrap and refrigerate for at least 4 hours, preferably overnight.
- Preheat oven to 350°F (175°C). Remove casserole from refrigerator and let sit at room temperature for 30 minutes before baking. Bake uncovered for 50-60 minutes until puffed and golden brown.
- Let the casserole rest for 10 minutes before slicing. Serve warm.

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