Name: Sausage and Spinach 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 garlic (minced); 3 cups fresh spinach; 2 large bell peppers (diced); ½ medium yellow onion (diced); Salt and pepper (to taste); 12 large eggs; ½ cup milk (any kind); ½ cup shredded cheese (any flavor; divided); Olive oil (as needed)

There’s something so comforting about a warm, cheesy breakfast straight from the oven that fills the kitchen with inviting aromas. This Sausage and Spinach Egg Bake Recipe combines savory sausage, fresh spinach, and melty cheese into one easy, crowd-pleasing dish you'll want to make again and again.

A clear glass baking dish filled with a cooked egg casserole cut into square pieces is shown on a white marbled surface. The top layer of the casserole is golden brown with melted cheese and visible wilted dark green spinach leaves and small red pepper pieces. Below the top layer, a creamy yellow egg mixture supports a textured base with bits of light-colored mushrooms and more vegetables. A silver spatula lifts one square piece from the dish, showing the layered interior of the casserole. The overall look is warm and fresh. 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 Sausage and Spinach Egg Bake Recipe
Top Tip
How to Serve Sausage and Spinach Egg Bake Recipe
Make Ahead and Storage
Frequently Asked Questions:
Final Thoughts
Sausage and Spinach Egg Bake Recipe

Why You'll Love This Recipe

Honestly, this Sausage and Spinach Egg Bake Recipe has become a staple in my kitchen because it’s as simple as it is versatile. Whether I’m feeding a busy family morning or hosting friends for brunch, this dish works every time.

Make-Ahead Magic: You can prep it the night before, saving you precious morning minutes without rushing.
Balance of Flavors: The savory sausage pairs beautifully with fresh spinach and sweet bell peppers for a well-rounded taste.
Customizable: Easily swap cheeses or add your favorite veggies to tailor it exactly to your liking.
Feeds a Crowd: This bake stretches nicely to serve a family brunch or small gathering hassle-free.

The image shows a white plate with a thick, square piece of baked egg dish as the main focus, topped with a golden-orange layer of melted cheese with hints of red and green vegetables mixed inside. The egg layer beneath is light yellow with visible pieces of spinach and red bell pepper, creating a colorful, textured look. Behind the egg dish, there are golden brown roasted potato pieces with crispy edges. A silver fork rests on the plate near the food. The plate is set on a dark green cloth with a white marbled surface in the background. Photo taken with an iphone --ar 2:3 --v 7

Ingredients & Why They Work

Each ingredient has its role in bringing this egg bake to life. When you layer the rich sausage with nutrient-packed spinach and crispy bell peppers, you get texture, flavor, and plenty of colors that make this dish a feast for the senses.

Flat lay of a handful of loose raw sausage meat with casing removed, two peeled garlic cloves minced, a small white bowl of golden olive oil, a simple white bowl filled with fresh spinach leaves, two vibrant diced red and green bell peppers, half a medium yellow onion diced, a few pinches of coarse salt and black peppercorns, a cluster of a dozen large whole uncracked eggs with clean shells, a small white bowl of fresh milk, and a small white bowl with shredded yellow cheese, all arranged symmetrically 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: Use a good quality sausage that’s either raw or pre-cooked; browning it adds great depth of flavor with caramelized edges.
Olive Oil: Just a splash to sauté your veggies without weighing them down.
Garlic: A little punch of garlic brightens up the whole dish and pairs perfectly with the spinach.
Spinach: Fresh is best here—when sautéed, it wilts down beautifully and melds into the eggs.
Bell Peppers: Diced and sautéed until tender, they add sweetness and a nice bite of color.
Yellow Onion: Adds sweetness and savory balance when cooked until soft.
Salt and Pepper: Essential seasonings to bring out the natural flavors of everything in the bake.
Eggs: The foundation that holds all the ingredients together in a custardy, flaky goodness.
Milk: Any kind works here; it makes the eggs tender and adds creaminess.
Shredded Cheese: I love this with a mix of cheddar and mozzarella, but feel free to use your favorite—it melts perfectly and adds richness.

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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

I like to tweak this egg bake depending on what’s in season or what I have on hand. Sometimes, I swap the spinach for kale or add mushrooms for an earthy twist. Don’t hesitate to make it yours!

Variation: Once, I mixed in some sun-dried tomatoes and feta cheese—I loved how the tangy feta cut through the richness of the sausage.
Vegetarian Option: If you prefer to skip the sausage, use crumbled firm tofu or plant-based sausage for a similar savory profile.
Spice it Up: Add a pinch of red pepper flakes when sautéing veggies for a subtle heat boost.

Step-by-Step: How I Make Sausage and Spinach Egg Bake Recipe

Step 1: Brown the Sausage

Start by heating your skillet over medium heat. If your sausage isn’t fully cooked, break it up and brown it until deliciously golden – about 5 to 7 minutes. Even if it’s pre-cooked, I like to give it a little sizzle to bring out extra flavor. Once browned, transfer it evenly into your prepared casserole dish. Don’t drain all the fat just yet; we’ll use it for the veggies!

Step 2: Sauté the Veggies

Using the same skillet, add a splash of olive oil if needed. Toss in the minced garlic, diced yellow onion, bell peppers, and fresh spinach. Cook gently for about 6 to 7 minutes until the veggies soften and the spinach wilts. Season with salt and pepper about a minute before taking them off the heat. This step infuses the dish with vibrant, fresh flavors.

Step 3: Combine & Add Eggs

Mix the sautéed vegetables with the browned sausage directly in the casserole dish. In a separate bowl, whisk together eggs, milk, and half of your shredded cheese. Pour this creamy mixture evenly over the sausage and veggie base. Sprinkle the remaining cheese on top and add a final dash of salt and pepper.

Step 4: Bake or Refrigerate Overnight

Go ahead and bake immediately at 375°F (191°C) for about 45 minutes until the edges turn lightly golden and the center is set but still custardy. Or, if mornings are hectic, cover the dish tightly and pop it in the fridge overnight—you’ll save valuable time and have a hot breakfast ready to go.

Top Tip

Having made this recipe countless times, I found a few tips that make all the difference to ensure success every time.

Don’t Overcook the Eggs: The bake will continue to firm up slightly as it cools, so it’s best to pull it just when it’s set but still a touch jiggly in the middle.
Use Fresh Vegetables: Fresh spinach and peppers give a brighter flavor and pleasant texture—frozen veggies tend to lose their punch.
Season Strategically: Season your cooked veggies before combining, then adjust salt and pepper again after adding eggs for layered seasoning.
Make Ahead: Baking straight away is great, but prepping the night before means you’ll thank yourself on those busy mornings.

How to Serve Sausage and Spinach Egg Bake Recipe

Garnishes

I love topping my slice with freshly chopped chives or a sprinkle of crushed red pepper flakes to add color and a little zing. A dollop of sour cream or a swirl of salsa adds brightness and ties all the flavors together beautifully.

Side Dishes

Pair this egg bake with crispy roasted potatoes or a light mixed green salad. If I’m feeling indulgent, some warm, buttery toast is the perfect side to mop up any cheesy goodness left on your plate.

Creative Ways to Present

For a brunch gathering, I’ve served it in mini muffin tins for easy individual portions — guests love how easy it is to grab and go. Layering it with colorful heirloom tomatoes on the side really makes the platter pop!

Make Ahead and Storage

Storing Leftovers

Leftovers keep well in an airtight container in the fridge for up to 5 days. I usually slice into portions immediately after it cools, so taking out just what I need is quick and mess-free.

Freezing

This egg bake freezes beautifully. I freeze it unbaked, tightly wrapped with plastic and foil. When I want to enjoy it, I thaw it overnight in the fridge and then bake as usual. The texture stays just right—definitely one of my favorite make-ahead tricks.

Reheating

For reheating, a quick zap in the microwave works wonders and keeps it moist. If you want to restore a bit of the original baked texture, pop small slices under the broiler for a minute or two.

Frequently Asked Questions:

Can I make this sausage and spinach egg bake recipe vegetarian?

Absolutely! You can swap out the sausage for vegetarian alternatives like plant-based sausage crumbles or even seasoned tofu, and the rest of the recipe remains exactly the same. The flavors are still delicious and the texture stays satisfying.

How far in advance can I prep this breakfast casserole?

You can prepare this Sausage and Spinach Egg Bake Recipe up to 24 hours in advance. Simply assemble everything, cover tightly, and refrigerate. When you’re ready, pop it in the oven for the suggested baking time. It’s perfect for busy mornings!

What’s the best cheese to use in this bake?

Cheddar, mozzarella, or a blend of both are my favorites because they melt well and complement the sausage and spinach nicely. Feel free to get creative with Monterey Jack, pepper jack for a little heat, or even a bit of feta for tanginess.

Can I freeze this casserole after it’s baked?

It’s better to freeze the casserole unbaked to maintain the best texture. Wrap it tightly with plastic wrap and foil, freeze up to 2 months, then thaw overnight and bake fresh. Freezing after baking can make the texture a bit watery when reheated.

Final Thoughts

This Sausage and Spinach Egg Bake Recipe has been a trusty go-to for mornings when I need something hearty, wholesome, and fuss-free. I hope you find it just as comforting and versatile—it’s one of those recipes you’ll return to again and again, whether for weekday breakfasts or casual brunch get-togethers. Give it a try and make it your own—here’s to cozy mornings and happy kitchens!