This Chicken and Spinach Casserole is a warm and comforting dish full of tender chicken, fresh spinach, and creamy cheese. It’s easy to prepare and perfect for busy nights!
Don’t be surprised if you find yourself going back for seconds; it’s just that good! I love serving it with a side salad for a complete meal. Yum!
Key Ingredients & Substitutions
Chicken: Cooked chicken breast is best here. If you’re short on time, rotisserie chicken works well too. You can use leftover chicken as a great twist on this recipe!
Spinach: Fresh spinach is awesome for texture, but thawed frozen spinach is a great time-saver. Just make sure to drain any water, so the casserole doesn’t get soggy.
Cream Cheese: This is crucial for that creamy texture. If you’re looking for a lighter option, low-fat cream cheese can be used, or even Greek yogurt for a tangy twist.
Mozzarella Cheese: I love mozzarella for its melty quality. If needed, you can substitute it with cheddar or provolone for a different flavor.
Onion & Garlic: They add a wonderful aroma and depth. If you’re not a fan of onion, shallots or leeks can be good substitutes. Garlic powder can replace fresh if needed!
How Do I Properly Sauté Spinach and Onions?
Sautéing your spinach and onions correctly is key to building flavor in the casserole. Here’s a simple way to do it:
- For spinach, heat olive oil or butter in the pan over medium heat. Add spinach and cook until just wilted (about 1-2 minutes).
- For onions, use the same pan after the spinach. Sauté chopped onions over medium heat for about 3-5 minutes until they are soft and turn translucent.
- Add minced garlic towards the end (about 30 seconds before taking off the heat) to avoid burning it.
This technique brings out the best flavors and sets a flavorful base for your casserole!
Chicken and Spinach Casserole
Ingredients You’ll Need:
For the Casserole:
- 3 cups cooked chicken breast, shredded or diced
- 4 cups fresh spinach (or 1 package frozen spinach, thawed and drained)
- 1 cup cream cheese, softened
- 1 cup sour cream
- 1 cup mayonnaise
- 1 cup shredded mozzarella cheese (plus extra for topping)
- 1/2 cup grated Parmesan cheese
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1 tsp dried Italian seasoning
- 1/2 tsp salt (adjust to taste)
- 1/2 tsp black pepper
- 1 tbsp olive oil or butter (for sautéing)
- Optional: 1/2 cup cooked mushrooms or other vegetables for added flavor
How Much Time Will You Need?
This yummy chicken and spinach casserole will take about 15 minutes to prepare and 30 minutes to bake, making a total of around 45 minutes from start to finish. It’s an easy recipe for a comforting, home-cooked meal!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 375°F (190°C)! This ensures that your casserole cooks evenly once it’s in the oven.
2. Sauté the Spinach:
If you’re using fresh spinach, add a tablespoon of olive oil or butter to a pan over medium heat. Once hot, add the spinach and sauté it for just a few minutes until it wilts down. For frozen spinach, be sure it’s fully thawed and drained so it doesn’t make your casserole watery.
3. Cook the Onion and Garlic:
In the same pan, add the finely chopped onion and minced garlic. Cook them for about 3-4 minutes until the onion is soft and translucent, and the garlic is fragrant. This will really enhance the flavor of your casserole!
4. Mix the Creamy Filling:
In a large mixing bowl, combine the softened cream cheese, sour cream, mayonnaise, dried Italian seasoning, salt, and pepper. Mix all these ingredients together until you have a smooth mixture.
5. Combine Everything:
Add the cooked chicken, sautéed spinach, onion, garlic, mozzarella cheese, Parmesan cheese, and any additional vegetables you want to include into the bowl. Stir everything together very well to make sure it’s all mixed nicely.
6. Prepare the Casserole Dish:
Lightly grease a casserole dish and transfer your chicken and spinach mixture into it. Spread it out evenly so it cooks evenly.
7. Add the Extra Cheese:
Top your casserole with extra shredded mozzarella cheese for that delicious, melty crust that everyone loves!
8. Bake the Casserole:
Place your casserole in the preheated oven and bake it uncovered for about 25-30 minutes. You’re looking for a bubbling and golden brown top.
9. Cool and Serve:
Once done, take it out of the oven and let it cool for a few minutes before serving. This helps it to set up a bit and makes it easier to scoop out with a spoon.
Enjoy your warm and hearty chicken and spinach casserole! It pairs wonderfully with a fresh side salad or some crusty bread for a complete meal.
Can I Use Canned Chicken Instead of Cooked Chicken?
Absolutely! Canned chicken can be a quick and convenient substitute. Just drain it well and use the same amount as indicated in the recipe.
How Do I Make This Recipe Gluten-Free?
This recipe is naturally gluten-free as it doesn’t contain any traditional flour or bread crumbs. Just verify that your mayonnaise and any optional vegetables are also gluten-free.
What Should I Do If I Have Leftovers?
Store your leftovers in an airtight container in the fridge for up to 3 days. Reheat in the microwave or oven until heated through. You may want to add a splash of cream or milk to help restore some creaminess!
Can I Freeze This Casserole?
Yes! You can freeze the casserole before or after baking. To freeze before baking, assemble the casserole in a greased dish, cover tightly with plastic wrap and foil, and freeze for up to 3 months. When ready to bake, thaw overnight in the fridge and follow the baking instructions. If frozen after baking, ensure it cools completely before sealing and storing.