There’s something incredibly comforting about a warm, cheesy Chicken and Spinach Casserole that feels like a hug on a plate. This dish has long been a favorite in our household, especially on those busy weeknights when I want something nourishing but fuss-free. Growing up in a small English town, casseroles were a staple of family meals, and this version blends that nostalgia with fresh, vibrant spinach and tender chicken. It’s the kind of recipe that brings everyone to the table, even my little ones who usually prefer their food dipped in ketchup or insist pancakes are a food group on their own.
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Why You’ll Love This Chicken and Spinach Casserole
This Chicken and Spinach Casserole is a perfect balance of cozy and wholesome, making it a go-to for family dinners. First, it’s incredibly simple to assemble, which is a lifesaver when juggling work and kids. Second, the spinach adds a fresh, earthy note that lightens up the richness of the creamy sauce, something I learned to appreciate after years of experimenting in restaurant kitchens. Lastly, it’s versatile—you can swap in your favorite cheeses or add mushrooms and herbs for a personal twist. For me, this casserole is more than just a meal; it’s a way to connect with my family and share a bit of my culinary journey.
Ingredients You’ll Need for This Chicken and Spinach Casserole
The key to this dish lies in selecting the right ingredients, especially fresh spinach and good-quality chicken. I find that using fresh baby spinach gives the casserole a delicate flavor and lovely texture, while leftover roasted chicken or even rotisserie chicken works beautifully to save time without sacrificing taste. When it comes to cheese, I lean towards a sharp cheddar or mozzarella for that melty, golden crust that always wins over my kids.
- 3 cups cooked chicken, shredded or diced (about 2 large breasts)
- 4 cups fresh baby spinach, roughly chopped
- 1 cup shredded sharp cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1 cup sour cream or Greek yogurt (for a lighter option)
- 1/2 cup mayonnaise
- 1/2 cup grated Parmesan cheese
- 1/2 cup chicken broth
- 1 tablespoon olive oil or butter
- 1 teaspoon dried thyme or Italian seasoning
- Salt and freshly ground black pepper, to taste
- Optional: 1/2 cup sliced mushrooms or chopped bell peppers for extra veggies
Nutrition Facts
- Calories: Approximately 350 per serving
- Protein: 35g
- Fat: 18g
- Carbohydrates: 6g
- Fiber: 2g
- Sugar: 2g
- Sodium: 550mg
Hearty and Healthy Chicken and Spinach Casserole Recipe to Savor
Learn how to make delicious Chicken and Spinach Casserole. Easy recipe with step-by-step instructions.
- Total Time: 45 minutes
- Yield: 4 servings 1x
Ingredients
The key to this dish lies in selecting the right ingredients, especially fresh spinach and good-quality chicken. I find that using fresh baby spinach gives the casserole a delicate flavor and lovely texture, while leftover roasted chicken or even rotisserie chicken works beautifully to save time without sacrificing taste. When it comes to cheese, I lean towards a sharp cheddar or mozzarella for that melty, golden crust that always wins over my kids.
- 3 cups cooked chicken, shredded or diced (about 2 large breasts)
- 4 cups fresh baby spinach, roughly chopped
- 1 cup shredded sharp cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1 cup sour cream or Greek yogurt (for a lighter option)
- 1/2 cup mayonnaise
- 1/2 cup grated Parmesan cheese
- 1/2 cup chicken broth
- 1 tablespoon olive oil or butter
- 1 teaspoon dried thyme or Italian seasoning
- Salt and freshly ground black pepper, to taste
- Optional: 1/2 cup sliced mushrooms or chopped bell peppers for extra veggies
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a medium baking dish with olive oil or butter.
- Heat olive oil in a skillet over medium heat. Add the chopped onion and sauté until translucent, about 4 minutes.
- Add the minced garlic and cook for another 30 seconds until fragrant.
- Stir in the fresh spinach (and optional mushrooms or peppers if using). Cook until wilted, about 3-4 minutes. Season with salt, pepper, and dried thyme.
- In a large bowl, combine the cooked chicken, sautéed veggies, sour cream (or Greek yogurt), mayonnaise, half of the cheddar and mozzarella cheeses, Parmesan, and chicken broth. Mix until everything is evenly incorporated.
- Pour the mixture into your prepared baking dish and spread it out evenly.
- Sprinkle the remaining cheddar and mozzarella cheeses on top for a golden, bubbly crust.
- Bake uncovered for 25-30 minutes, or until the casserole is hot and the cheese is melted and starting to brown.
- Remove from oven and let it rest for 5 minutes before serving. This helps the casserole set and makes it easier to portion.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Cooking
- Cuisine: International
Steps to Create Your Chicken and Spinach Casserole
- Preheat your oven to 375°F (190°C). Lightly grease a medium baking dish with olive oil or butter.
- Heat olive oil in a skillet over medium heat. Add the chopped onion and sauté until translucent, about 4 minutes.
- Add the minced garlic and cook for another 30 seconds until fragrant.
- Stir in the fresh spinach (and optional mushrooms or peppers if using). Cook until wilted, about 3-4 minutes. Season with salt, pepper, and dried thyme.
- In a large bowl, combine the cooked chicken, sautéed veggies, sour cream (or Greek yogurt), mayonnaise, half of the cheddar and mozzarella cheeses, Parmesan, and chicken broth. Mix until everything is evenly incorporated.
- Pour the mixture into your prepared baking dish and spread it out evenly.
- Sprinkle the remaining cheddar and mozzarella cheeses on top for a golden, bubbly crust.
- Bake uncovered for 25-30 minutes, or until the casserole is hot and the cheese is melted and starting to brown.
- Remove from oven and let it rest for 5 minutes before serving. This helps the casserole set and makes it easier to portion.
Tips for Making the Best Chicken and Spinach Casserole
Getting this casserole just right hinges on balancing moisture and texture. Overcooked spinach can turn mushy, while too much liquid makes the dish soupy. From years of cooking professionally and at home with my family, I’ve learned a few simple tricks to elevate this dish every time.
- Use cooked chicken from a previous meal or rotisserie chicken to save time without losing flavor.
- Sauté spinach and any additional veggies first to release excess moisture and concentrate their flavors.
- Don’t skip resting the casserole after baking; it firms up beautifully and makes serving easier.
- Feel free to swap sour cream for Greek yogurt for a tangier, healthier twist.
- For a crispy topping, add panko breadcrumbs mixed with a little melted butter before baking.
- Season thoughtfully—taste your mixture before baking to adjust salt and pepper, especially if using store-bought broth or cheese.
With these tips, you’ll create a restaurant-quality dish every time. Learn more: related recipe Learn more: Crave-Worthy Chicken Alfredo Tater Tot Casserole Recipe
Serving Suggestions and Pairings

This casserole is incredibly versatile and works beautifully for a cozy family dinner or casual entertaining. I love serving it with simple sides that let its creamy, cheesy flavors shine through. It’s also a crowd-pleaser when I have friends over for an informal meal, paired with easy salads and crisp drinks.
- Pair with a crisp white wine like Sauvignon Blanc or a sparkling water with lemon for a refreshing contrast.
- Serve alongside a fresh green salad tossed with a bright vinaigrette to balance richness.
- Add crusty bread or garlic knots for a satisfying carb option.
- For a seasonal twist, swap spinach with kale or add roasted butternut squash in autumn.
- Top with sliced avocado or a dollop of salsa for a fresh, unexpected layer of flavor.
Whether it’s a midweek family meal or a potluck contribution, this casserole brings warmth and comfort to the table every time.
Storage and Reheating Tips
Proper storage ensures you can enjoy leftovers just as much as the fresh dish, which is especially handy for busy parents like me. This casserole keeps well and actually tastes better the next day once the flavors have melded.
- Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Reheat gently in the oven at 325°F (160°C) or microwave on medium power to avoid drying out.
- Add a splash of chicken broth or a little extra sour cream when reheating to restore creaminess.
- This casserole also freezes well—portion into freezer-safe containers and freeze for up to 2 months.
- Thaw overnight in the fridge before reheating for best results.
Frequently Asked Questions
What are the main ingredients for Chicken and Spinach Casserole?
The main ingredients for Chicken and Spinach Casserole include the items listed in our ingredients section above. Each ingredient plays a crucial role in achieving the perfect flavor and texture.
How long does it take to make Chicken and Spinach Casserole?
The total time to make Chicken and Spinach Casserole includes both preparation and cooking time. Check the recipe card above for exact timing details.
Can I make Chicken and Spinach Casserole ahead of time?
Yes, Chicken and Spinach Casserole can often be prepared in advance. Store it properly in an airtight container in the refrigerator and consume within the recommended timeframe.
What can I serve with Chicken and Spinach Casserole?
Chicken and Spinach Casserole pairs well with various sides and accompaniments. Consider the serving suggestions mentioned in the recipe for the best dining experience.
Is Chicken and Spinach Casserole suitable for special diets?
Depending on the ingredients used, Chicken and Spinach Casserole may be adapted for various dietary needs. Check the ingredients list and consider substitutions as needed for your dietary requirements.
Final Thoughts
I hope this Chicken and Spinach Casserole brings a little extra comfort and joy to your table, just as it has in mine. Cooking doesn’t have to be complicated to be delicious, and this recipe is a beautiful example of that. I’d love to hear how you make it your own—feel free to share your twists and stories!












