I created this low-carb spinach and sausage egg casserole based on our other egg casserole recipes, but I really wanted an easy, cheesy breakfast casserole with crumbled sausage for a hearty, but still healthy, start to your morning.

Best of all, you can make it ahead of time, so it’s the perfect breakfast casserole for Christmas morning or weekend brunch!

Ingredients for Egg and Sausage Casserole

• Breakfast Sausage: Provides savory, meaty flavor and richness. Its fat also helps keep the casserole moist and infuses the eggs and veggies with flavor. 
• Eggs: The main binder and base of the casserole. They set as they bake, holding everything together while adding protein and structure. 
• Skim Milk: Lightens the egg mixture, making the texture more custardy and less dense. It also helps distribute flavors more evenly throughout the dish. 
• Salt and Black Pepper: Basic seasoning to enhance all the other flavors. Salt balances richness, and pepper adds gentle warmth.
• Sharp Cheddar Cheese: Adds bold, tangy flavor and creamy texture. Sharp cheddar stands out against the eggs and sausage, giving the casserole depth.
• Dried Oregano: Brings a warm, earthy, slightly peppery note that complements both the sausage and cheese, adding a layer of herbal flavor. 
• Fresh Spinach: Adds color, nutrients, and a fresh contrast to the richness of the meat and cheese. It also brings a bit of moisture and balance.

How to Make Sausage and Egg Casserole

1. Prep: Preheat the oven to 350℉ and grease a 9×13″ casserole dish.
2. Cook the Sausage: Heat a skillet over medium high heat and cook the sausage. Drain the grease and set aside.
3. Combine: Beat the eggs and milk in a large bowl and season with salt and pepper. Add in the sausage, cheese, oregano and spinach and stir to combine.
4. Bake: Pour the egg mixture into the prepared baking dish and bake for about 30-40 minutes.

Are Breakfast Egg Casseroles Healthy?

The short answer is that it depends! It depends on what goes into the egg casserole. This recipe is low carb (2g) and high protein (16g) with a full serving being only about 250 calories. That’s a hearty and satisfying breakfast!

What to Eat with Sausage Egg Casserole

I love to eat egg casserole with a scoop of fresh pico de gallo. It would also be great with some salsa verde or Read more

Cheesy Bacon Baked Egg Casserole with peppers for when you’re looking for an easy, healthy breakfast casserole! Made with only 9 ingredients (eggs, peppers, bacon, cheese and spices) it’s a hearty, low-carb, high protein recipe for breakfast and it’s perfect for the days you don’t want to make dinner!

My mom and dad are empty nesters and are often sending me simple recipes that they are loving. Mom knows that as much as she’s tired of making dinner, there are people all over the world tired of deciding, “what’s for dinner”. I love her suggestions and this healthy egg casserole recipe is one of my favorites!

I love that this egg bake is a straightforward breakfast casserole that keeps you full longer thanks to the bacon, eggs, peppers and cheese.

This egg casserole is a perfect meal-prep recipe and it is totally versatile. If this version hits all the right notes for you, make sure you try our cheesy egg casserole with ham and sauteed mushrooms too!

Ingredients for Baked Egg Casserole

• Bacon: Adds salty savory flavor to the dish.
• Bell Peppers: A little crunch and mild flavor to add depth and variety to the dish which helps you feel more satisfied.
• Eggs: A lot of eggs are needed! We prefer to use large eggs.
• Milk: Creates a softer egg.
• Seasonings: Add flavor with minimal effort.
• Sharp Cheddar Cheese: Sharp cheese adds a lot more flavor to the dish compared to a mild variety.

How to Make Baked Egg Casserole

1. Grease a casserole dish so the eggs don’t stick.
2. Cook the bacon until crispy.
3. Sauté the peppers and add the onions and seasonings.
4. Chop the bacon.
5. Beat the eggs and milk.
6. Stir in the remaining bacon, peppers mix and cheese into the egg mixture, reserving a small amount of cheese to sprinkle on top.
7. Pour into the prepared baking dish and add remaining cheese, and bake until a knife inserted into the middle comes out clean, about 30-40 minutes.

Variations for Egg Casserole

• Customize this recipe with your favorite veggies, greens and meat. Here are some ideas:
  Read more

Tender eggs are baked with savory ham, melty cheese, and earthy sautéed mushrooms for a hearty, make-ahead breakfast that is golden, bubbly, will have everyone wandering into the kitchen asking, “What smells so good?” This is a breakfast egg casserole that everyone loves!

This simple low carb, no bread egg casserole is perfect for breakfast, brunch or dinner! Full of Mushrooms, Ham, and Cheddar Egg Bake has so many great flavors, and it’s great for Weekend Food Prep!

Ingredients for Breakfast Egg Casserole Recipe

• Butter: Provides fat for sautéing, helps mushrooms brown, and adds flavor richness. Olive oil can also be used.
• Baby Bella Mushrooms: Add earthy depth and umami, and sautéing removes excess moisture so the casserole isn’t watery. 
• Ham: Adds a salty, savory protein boost and balances the richness of the eggs and cheese. 
• Eggs: The base of the casserole, binding everything together while giving it a rich, custardy texture .
• Skim Milk: Lightens the texture of the eggs, keeps them moist, and prevents the casserole from being rubbery. 
• Salt and Black Pepper: Enhance and balance flavors so the casserole doesn’t taste flat.
• Cheddar Cheese: Melts into creamy pockets, adds bold cheesy flavor, and helps bind ingredients together.
• Dried Oregano: Brings a subtle herby aroma and Mediterranean flavor to complement ham and mushrooms. 
• Fresh Spinach: Adds freshness, nutrients, and a pop of color; balances the richness with a mild, earthy taste.

How to Make Ham and Cheese Breakfast Casserole

1. Prep: Preheat the oven and grease a casserole dish.
2. Sauté: Heat a skillet pan over medium heat and add the butter or oil, then add the mushrooms and cook without stirring until browned. Season with salt and pepper. Set aside.
3. Beat: Beat the eggs and milk in a large bowl with a whisk. Season with about 1/2 teaspoon salt and pepper to taste. 
4. Combine: Add in the ham, mushrooms, cheese, oregano and spinach to the egg mixture. Stir to combine.
5. Bake: Pour into the prepared baking dish and bake until a knife inserted into the middle comes out clean.