Name: Easy Sausage Breakfast Egg Bake Recipe
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 10 to 12 ounces sausage (casing removed); 2 cloves of garlic (minced); 3 cups fresh spinach; 2 large bell peppers (diced); ½ medium yellow onion (diced); Olive oil (for sautéing); Salt and pepper (to taste); 12 large eggs; ½ cup milk (any type); ½ cup shredded cheese (any flavor; divided)

There's something incredibly comforting about a warm, hearty breakfast casserole waiting for you in the morning. This Easy Sausage Breakfast Egg Bake Recipe is just that—a perfect blend of savory sausage, fresh veggies, and fluffy eggs that comes together effortlessly, whether you bake it right away or make it ahead for busy mornings.

The image shows a close-up of a rectangular baked dish divided into square pieces with one piece being lifted by a silver spatula. The dish has about four visible layers: the bottom layer is light and slightly crusty, the second layer is a mix of red and green bits suggesting chopped peppers and spinach, the third layer is creamy white, likely cheese or eggs, and the top layer is a golden orange melted cheese with browned spots and scattered dark green leafy bits. The baking dish is transparent glass placed on a white marbled surface. photo taken with an iphone --ar 2:3 --v 7

Jump to:

Why You'll Love This Recipe
Ingredients & Why They Work
Make It Your Way
Step-by-Step: How I Make Easy Sausage Breakfast Egg Bake Recipe
Top Tip
How to Serve Easy Sausage Breakfast Egg Bake Recipe
Make Ahead and Storage
Frequently Asked Questions:
Final Thoughts
Easy Sausage Breakfast Egg Bake Recipe

Why You'll Love This Recipe

I’m genuinely excited to share this recipe because it makes weekday breakfasts feel like a cozy weekend treat. It’s straightforward, flavorful, and endlessly adaptable—trust me, you’ll want to keep this one in your rotation.

Make-Ahead Friendly: You can prep this casserole the night before, so mornings are less hectic.
Loaded with Veggies: Fresh spinach, peppers, and onions add color, nutrition, and great taste.
Customizable Cheese: Use your favorite cheese type to match your mood or what you have on hand.
Feeds a Crowd: It’s perfect for family breakfasts or brunches with friends—everyone will ask for seconds.

This image shows a white speckled plate holding a square piece of egg casserole with three visible layers: the top layer is golden and melted cheese mixed with bits of green spinach and red peppers, the middle layer is creamy and light yellow with visible spinach and small red vegetable pieces, and the bottom layer contains cooked pieces of light brown potatoes and some egg mixture. Next to the casserole on the plate are roasted potato chunks that are golden brown and crisp. A silver fork rests on the edge of the plate. The plate sits on a white marbled surface with a dark green cloth partly visible underneath. Photo taken with an iphone --ar 2:3 --v 7

Ingredients & Why They Work

All the ingredients in this Easy Sausage Breakfast Egg Bake Recipe come together harmoniously, creating layers of flavor and texture. Here’s a little insight into each one and why I love them in this bake.

Flat lay of raw ground sausage in a mound, two cloves of peeled garlic, a small white bowl of olive oil, a handful of fresh green spinach leaves, two large diced red and yellow bell peppers mixed together, half of a medium yellow onion diced, a dozen whole large brown eggs with clean uncracked shells, a small white bowl filled with fresh milk, a small white bowl containing shredded cheese, a white ceramic bowl with mixed salt and black peppercorns placed symmetrically, all ingredients arranged neatly in perfect balance and symmetry, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997

Sausage: Adds rich, savory flavor and protein, plus a little grease that helps cook the veggies.
Olive oil: Used for sautéing if you want extra flavor or your sausage isn’t too greasy.
Garlic: Just two cloves impart a subtle depth without overpowering the dish.
Spinach: Wilts down nicely and adds a fresh, green element that balances the richness.
Bell peppers: Provide sweetness and a bit of crunch, I prefer red or yellow for a pop of color.
Yellow onion: Brings natural sweetness and a gentle bite when sautéed.
Salt and pepper: Simple seasonings to enhance all the flavors.
Large eggs: The heart of the bake, binding everything together with a custardy texture.
Milk: Keeps the eggs tender and creamy—any kind works.
Shredded cheese: I divide it between the egg mixture and the topping for melty richness and a slightly crisp crust.

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Note: You'll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Make It Your Way

One of the coolest things about this Easy Sausage Breakfast Egg Bake Recipe is how flexible it is. I often swap veggies or cheese depending on what’s in my fridge, and you can make it gluten-free, low-carb, or even vegetarian with a few tweaks.

Variation: I’ve tried swapping sausage for chorizo for a spicy kick that’s out of this world—give it a shot if you like bold flavors.
Make it vegetarian: Substitute sausage with sautéed mushrooms or seasoned tofu crumbles, and you won’t miss the meat at all.
Dairy-free option: Use a plant-based milk and skip or use a dairy-free cheese to suit your needs.
Extra veggies: Feel free to add mushrooms, zucchini, or even some cherry tomatoes for color and moisture.

Step-by-Step: How I Make Easy Sausage Breakfast Egg Bake Recipe

Step 1: Get the base ready with sausage

First things first—brown your sausage in a skillet over medium heat. Even if you have pre-cooked sausage, I like to give it a little sizzle to deepen the flavor and render some grease for the veggies. Once browned, spoon the sausage evenly into your greased casserole dish. This creates a savory, meaty foundation that everything else builds on.

Step 2: Sauté your veggies till tender

Next, toss minced garlic into the same skillet (adding a splash of olive oil if the pan’s dry) and cook briefly till fragrant. Add in spinach, diced bell peppers, and onion, stirring until the veggies are soft and the spinach has wilted—that usually takes about 6 or 7 minutes. Season with salt and pepper right at the end to enhance their natural flavors.

Step 3: Combine your layers

Take the cooked vegetables off the heat and mix them gently but evenly with the sausage in the casserole dish. This is the colorful, flavorful filling that will be enveloped by the egg.

Step 4: Whisk up the eggs and cheese

In a medium bowl, whisk together the large eggs, milk, and half of your shredded cheese—this mixture turns into that custardy, rich texture that makes this bake so irresistible. Pour this egg mixture evenly over the sausage and veggie combo, then sprinkle the remaining cheese on top for a bubbly, golden finish.

Step 5: Bake and enjoy—or refrigerate till morning

If you’re ready to eat right away, pop the casserole in a preheated 375°F oven and bake until the edges are golden and the middle is just set—usually around 45 minutes. If you’re prepping ahead, cover it tightly and refrigerate for up to 24 hours before baking. Either way, let it cool 15 minutes before slicing—that step makes serving so much easier.

Top Tip

Having made this recipe dozens of times, I’ve learned that a few small touches make a world of difference. This isn’t just about cooking, it’s about making your mornings smooth and tasty.

Pre-bake oil: If your sausage is low-fat, add a teaspoon of olive oil before sautéing veggies to avoid dry bites.
Don’t skip the rest: Letting the casserole cool after baking helps it set and makes clean slices, plus keeps it from falling apart.
Cheese timing: Dividing the cheese between the mix and topping gives you that custardy melt inside AND a beautifully browned top crust.
Veggie prep: Dice peppers and onions evenly for balanced cooking and flavor distribution throughout the casserole.

How to Serve Easy Sausage Breakfast Egg Bake Recipe

sausage breakfast bake - Serving Suggestion

Garnishes

I love adding a sprinkle of fresh chopped parsley or green onions right before serving—this adds a fresh punch and a nice pop of color. Sometimes, a dollop of sour cream or hot sauce kicks it up a notch for those mornings I’m craving a little extra zing.

Side Dishes

This bake pairs wonderfully with simple sides like crispy hash browns, fresh fruit salad, or toasted sourdough bread. If you’re feeling fancy, a side of roasted potatoes or baked avocado slices makes the meal even more filling and satisfying.

Creative Ways to Present

For brunches, I sometimes assemble mini individual ramekins instead of one big casserole—perfect for gifting or easy portion control. I’ve also seen people load this into hollowed-out mini bell peppers or bake it inside large portobello mushrooms for a fun twist.

Make Ahead and Storage

Storing Leftovers

After baking, let the casserole cool completely and store leftovers in an airtight container or cover the dish with foil. It keeps beautifully in the fridge for up to 5 days, making it a lifesaver for breakfast or even a quick dinner.

Freezing

I often freeze the whole unbaked casserole for up to 2 months. Just wrap it tightly in plastic wrap and foil to keep freezer burn away. When you’re ready, thaw it overnight in the fridge and bake as usual—the texture and taste hold up great!

Reheating

Reheat individual slices in the microwave for about 60 seconds or until warmed through. If you want a crispy top again, a quick 5-minute pop in a 350ºF oven does wonders without drying it out.

Frequently Asked Questions:

Can I use turkey sausage instead of pork sausage?

Absolutely! Turkey sausage works perfectly in this Easy Sausage Breakfast Egg Bake Recipe. Just brown it the same way you would pork sausage for flavorful results.

Can I add other vegetables?

Yes! Feel free to add mushrooms, zucchini, or cherry tomatoes. Just keep in mind that extra moisture-heavy veggies might slightly increase your baking time.

Is it necessary to pre-cook the sausage?

While fully cooked sausage can be used, I recommend browning it briefly to bring out deeper flavors and a better texture in the bake.

Can I make this recipe dairy-free?

Yes, you can substitute the milk with any plant-based milk and either omit the cheese or use a dairy-free alternative to keep it dairy-free and delicious.

Final Thoughts

This Easy Sausage Breakfast Egg Bake Recipe has quickly become a go-to for me because it feels like a hug on a plate—simple, satisfying, and easy to make ahead so mornings aren’t stressful. I hope you try it out and find it just as comforting and flexible in your kitchen as I have in mine.