Mediterranean Cheesy Spinach and Chicken Casserole

Creamy, cheesy, and packed with tender chicken, fresh spinach, garlic, and Mediterranean herbs, this Mediterranean Cheesy Spinach and Chicken Casserole is a comforting, protein-rich dinner perfect for busy weeknights. It’s easy to prepare and delicious served on its own or with a fresh salad.
Ingredients
For the Chicken Casserole

• 2 large boneless, skinless chicken breasts, cut into bite-sized pieces
• 4 cups fresh spinach
• 1 tablespoon olive oil
• 3 cloves garlic, minced
• 1 small onion, finely chopped
• 1 cup cherry tomatoes, halved
• 1/2 cup sun-dried tomatoes, chopped and drained
• 1 teaspoon dried oregano
• 1/2 teaspoon dried basil
• 1/2 teaspoon paprika
• 1/2 teaspoon salt, or to taste
• 1/4 teaspoon black pepper
• 1/2 teaspoon Italian seasoning
  For the Creamy Cheese Mixture
• 4 oz (115 g) cream cheese, softened
• 1/2 cup sour cream or plain Greek yogurt
• 1/2 cup heavy cream
• 1 cup shredded mozzarella cheese
• 1/2 cup crumbled feta cheese
• 1/4 cup grated Parmesan cheese
• 1 tablespoon lemon juice
  Instructions
  Step 1: Prepare the Oven
  Preheat your oven to 375°F (190°C). Lightly grease a medium-sized baking dish with olive oil or nonstick cooking spray.
  Step 2: Cook the Chicken
  Heat olive oil in a large skillet over medium-high heat. Add the chicken pieces and season with salt, black pepper, paprika, oregano, basil, and Italian seasoning.

Cook for 5–7 minutes, stirring occasionally, until the chicken is lightly golden on the outside. It does not need to be fully cooked yet. Transfer to a plate.
Step 3: Sauté the Vegetables
In the same skillet, add the chopped onion and cook for 2–3 minutes until softened. Add the minced garlic and cook for 30 seconds.

Stir in the cherry tomatoes, sun-dried tomatoes, and fresh spinach. Cook for 2–3 minutes, until the spinach wilts and excess moisture begins to evaporate.
Step 4: Make the Creamy Cheese Sauce
In a bowl, combine the softened cream cheese, sour cream or Greek yogurt, heavy cream, lemon juice, and half of the Parmesan cheese. Mix until mostly smooth.

Stir in half of the mozzarella and half of the feta cheese.
Step 5: Combine Everything
Return the chicken to the skillet with the vegetables. Pour the creamy cheese mixture over everything and stir gently until the chicken and vegetables are evenly coated.

Transfer the mixture to the prepared baking dish. Sprinkle the remaining mozzarella, feta, and Parmesan cheese evenly over the top.
Step 6: Bake
Bake uncovered for 20–25 minutes, or until the casserole is bubbling, the cheese is golden, and the chicken reaches an internal temperature of 165°F (74°C).

If you want a more golden cheese topping, broil for 1–2 minutes at the end, watching carefully to prevent burning.
Step 7: Rest and Serve
Let the casserole rest for 5 minutes before serving. Garnish with fresh parsley or basil and a little extra lemon juice if desired.

Serve warm with a Greek salad, roasted vegetables, cauliflower rice, or crusty bread.
Recipe Information

• Prep Time: 15 minutes
• Cook Time: 30–35 minutes
• Total Time: 45–50 minutes
• Servings: 4
• Cuisine: Mediterranean-inspired
• Course: Dinner, Main Course
• Cooking Method: Oven-baked
  Estimated Nutrition Information
  Per serving, based on 4 servings:
• Calories: 480–550
• Protein: 40–45 g
• Carbohydrates: 10–15 g
• Fat: 30–36 g
• Fiber: 2–4 g
• Sugar: 4–6 g
  Nutrition values are estimates and will vary depending on the brands and exact quantities of cheese, cream, and other ingredients used.
  Nut Information and Allergens
• Tree nuts: No tree nuts are included in the standard recipe.
• Peanuts: No peanuts are included in the standard recipe.
• Dairy: Contains cream cheese, sour cream or Greek yogurt, heavy cream, mozzarella, feta, and Parmesan.
• Gluten: The ingredients listed are naturally gluten-free, but check all product labels for possible cross-contamination or added ingredients.
• Eggs: No eggs are required.
• Soy: Not a standard ingredient, but check packaged ingredients for soy-based additives.
  Allergy note: If serving someone with a nut allergy, check product labels and avoid cross-contact with nuts during preparation.
  Tips for the Best Casserole

1. Remove excess moisture: Cook the spinach until wilted and allow excess liquid to evaporate to prevent a watery casserole.
2. Use freshly shredded mozzarella: It generally melts more smoothly than pre-shredded cheese.
3. Avoid overcooking the chicken: Cut the chicken into evenly sized pieces and check that it reaches 165°F (74°C).
4. Add extra Mediterranean flavor: A few chopped Kalamata olives or a tablespoon of capers can add a delicious salty, tangy flavor.
5. Make it lighter: Replace the heavy cream with additional plain Greek yogurt, adding it gently to help prevent curdling.
   Storage and Reheating

• Refrigerator: Store in an airtight container for up to 3–4 days.
• Freezer: Freeze in a freezer-safe container for up to 2 months for best quality.
• Reheating: Reheat in a covered oven-safe dish at 325°F (165°C) until heated through, or microwave individual portions in short intervals.
• Food safety: Refrigerate leftovers within 2 hours and reheat to 165°F (74°C).
  Frequently Asked Questions (Q&A)
  Q1: Can I use frozen spinach?

Yes. Thaw it completely and squeeze out as much water as possible before adding it to the casserole.

Q2: Can I use chicken thighs instead of chicken breasts?

Absolutely. Boneless, skinless chicken thighs work well and provide a richer flavor. Cut them into bite-sized pieces and cook until they reach 165°F (74°C).

Q3: Can I prepare this casserole ahead of time?

Yes. Assemble the casserole, cover, and refrigerate for up to 24 hours before baking. Add a few extra minutes to the baking time if it goes into the oven cold, and confirm the chicken reaches a safe internal temperature.

Q4: Is this casserole low-carb?

It is relatively low in carbohydrates compared with casseroles made with pasta, rice, or potatoes. The exact carbohydrate content depends on the ingredients and portion size.

Q5: Can I make this casserole without cream cheese?

Yes. Use additional thick Greek yogurt or ricotta cheese. The texture and flavor will be slightly different.

Q6: What other vegetables can I add?

Sliced mushrooms, zucchini, roasted red peppers, or artichoke hearts are excellent Mediterranean-inspired additions. Cook out excess moisture before baking.

Q7: Is this recipe gluten-free?

The listed ingredients are naturally gluten-free. Always verify the labels on packaged ingredients and seasonings.

Q8: Can I make it without sun-dried tomatoes?

Yes. Replace them with extra cherry tomatoes, roasted red peppers, or a few chopped olives.

Q9: How do I know when the casserole is ready?

The sauce should be bubbling, the cheese should be melted and lightly golden, and the thickest chicken pieces must reach 165°F (74°C).

Q10: Does this recipe contain nuts?

No nuts are intentionally added to the standard recipe. However, packaged products and preparation environments may pose a cross-contact risk for people with allergies.