Spinach Sausage Casserole is a hearty dinner with great flavor made with sausage, spinach, eggs, stuffing, cheese, and milk.

This baked casserole is easy to make and can be prepared ahead of time, making it a great option for busy weeknights. Whether you are looking for a hearty lunch or a comforting dinner, sausage casserole is a versatile and delicious option that is sure to please.
Egg Sausage Spinach Casserole for dinner!
Looking for a quick and easy meal to make during the week? Look no further than spinach sausage casserole! This delicious dish has fantastic flavor and is super filling. One of the best things about this casserole is how simple it is to make. With just a few ingredients and minimal prep time, you can have a delicious and satisfying meal on the table in no time. Plus, it’s a great way to use up any spinach you have in the fridge!
Not only is this casserole easy to make, but it’s also a great way to get some extra veggies into your diet. Spinach is packed with nutrients like iron, calcium, and vitamin K, making it a great choice for a healthy meal. Plus, the protein from the sausage will keep you feeling full and satisfied.
Why You Should Make This Casserole for Dinner
- It’s a crowd-pleaser: This casserole is a great option for feeding a large group of people. It’s hearty, filling, and packed with flavor, so it’s sure to be a hit with everyone at the table.
- It’s easy to customize: One of the great things about this casserole is that it’s easy to customize to your liking. You can switch up the type of sausage you use, add more or less spinach, or even throw in some additional veggies to make it your own.
- It’s a great make-ahead option: This casserole can be assembled ahead of time and stored in the fridge until you’re ready to bake it. This makes it a great option for busy weeknights or for entertaining guests.

Spinach & Sausage Casserole Ingredients
Stuffing: For a filling meal, you will need one 6-oz box of herb-flavored stuffing mix.
Sausage: Adding in ½ lb. of pork sausage, cooked & drained, will make this a complete meal with plenty of protein.
Green onions: Using ¼ cup of chopped green onions will add a nice subtle sweet taste to this casserole.
Garlic: Give this dish an earthy flavor by adding in 1 tsp of minced garlic.
Spinach: You need 2 cups of lightly packed fresh spinach for a great nutritious addition to this meal.
Cheese: A casserole isn’t complete with out cheese, use 1 ½ cups of shredded Monterey jack cheese for this recipe.
Milk: Add some moisture to this casserole by using 1 ½ cups of milk.
Eggs: Help bind the ingredients together by adding in 3 large eggs.
Cheese: Top this amazing dish with more tasty cheese, you will need ¼ cup of shredded Parmesan cheese.

How to make Sausage Spinach Casserole
Prep
Begin by preheating the oven to 400°F.
Then, prepare the stuffing according to the package directions.
Next, chop the onions and mince the garlic (if using fresh) and if the cheeses need to be shredded, get that done too.
Cook sausage
In a large skillet, crumble the sausage and begin to cook it over medium heat. Now, add in the onions and garlic; continue to cook until the meat is no longer pink. Then drain the grease and set it aside.
Assemble
Transfer the stuffing to a large bowl, pour in the sausage mixture and stir to combine. Next, add in the spinach and stir again to distribute all ingredients well.
After that, transfer the mixture to a greased 11×7-inch baking dish and sprinkle with Monterey jack cheese.
In a small bowl, combine the milk and eggs; pour this evenly over the sausage mixture.
Bake
Place the casserole in the preheated oven and bake for 35-40 minutes or until a thermometer reads 160°. Lastly, sprinkle the top with parmesan cheese and bake another 5 minutes or until bubbly. Serve and enjoy!

Variations of Spinach Sausage Casserole
Spinach Sausage Casserole is a versatile dish that can be customized to suit different tastes and preferences. Here are some variations of the classic recipe:
- Vegetarian Spinach Casserole: For vegetarians, simply omit the sausage and substitute it with chopped mushrooms or tofu. This version of the casserole is still packed with protein and flavor, thanks to the addition of eggs and cheese.
- Spicy Spinach Sausage Casserole: If you like a bit of heat, add some diced jalapeños or red pepper flakes to the casserole. You can also use spicy sausage instead of mild sausage to give it an extra kick.
- Spinach and Artichoke Casserole: For a twist on the classic recipe, add some chopped artichoke hearts to the casserole. The artichokes add a tangy flavor and a bit of texture to the dish.

SPINACH SAUSAGE CASSEROLE
Ingredients
- 6 oz box of herb-flavored stuffing mix
- ½ lb. pork sausage
- ¼ cup green onions chopped
- 1 tsp garlic minced
- 2 cups fresh spinach lightly packed
- 1 ½ cups Monterey jack cheese shredded
- 1 ½ cups milk
- 3 large eggs
- ¼ cup Parmesan cheese shredded
Instructions
- Prep: Preheat oven to 400°F. Prepare the stuffing according to package directions.
- Chop the onions and mince the garlic (if using fresh) and if the cheeses need to be shredded, get that done too.
- Cook sausage: In a large skillet, crumble the sausage and begin to cook it over medium heat. Add in the onions and garlic; continue to cook until the meat is no longer pink. Drain the grease and set it aside.
- Assemble: In a large bowl, combine the stuffing, sausage mixture and spinach. Transfer to a greased 11×7-inch baking dish; sprinkle with Monterey jack cheese.
- In a small bowl, combine milk and eggs; pour over the sausage mixture.
- Bake: Bake for 35-40 minutes or until a thermometer reads 160°. Sprinkle with parmesan cheese; bake 5 minutes longer or until bubbly. Enjoy!
Notes
Nutrition
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Common Mistakes to Avoid When Making Sausage Casserole
When making Spinach Sausage Casserole, it is important to avoid a few common mistakes. One of the most common mistakes is overcooking the casserole, which can result in a dry and tough texture. Another mistake is not properly draining the spinach, which can make the casserole watery. Lastly, using too much cheese can make the casserole greasy and heavy.

What is the Best Way to Reheat a Casserole?
The best way to reheat Spinach Sausage Casserole is in the oven. Preheat the oven to 350°F and place the casserole in a baking dish. Cover the dish with foil and bake for 20-25 minutes or until heated through. Alternatively, you can reheat individual portions in the microwave on high for 1-2 minutes.
How Long is this Spinach Sausage Casserole Good For?
Spinach Sausage Casserole can be stored in the refrigerator for up to 3-4 days. To ensure maximum freshness, store the casserole in an airtight container or cover it tightly with plastic wrap.
Can I Freeze leftovers of this sausage casserole?
Yes, Spinach Sausage Casserole can be frozen for up to 2-3 months. To freeze, let the casserole cool completely and then wrap it tightly in plastic wrap and foil. When ready to eat, thaw the casserole in the refrigerator overnight and then reheat it in the oven or microwave.

More Casserole recipes for dinner:
- Looking to make an egg casserole for breakfast for dinner? We love this Cheesy Baked Egg Casserole, and opted to add some ham in this Ham & Cheese Breakfast Egg Casserole.
- Our Poppy Seed Chicken Casserole is comfort food at it’s finest with a flavorful, creamy sauce that we can’t get enough of.
- We topped our Ritz Chicken & Rice Casserole with, you guessed it, buttery Ritz crackers! It’s devoured every time I make it.
Spinach Sausage Casserole is loaded with flavor and is an easy weeknight meal that your whole family will love. This sausage casserole only needs a few basic ingredients, such as sausage, stuffing, spinach, eggs, cheese, and milk.











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