This Mediterranean Creamy Mushroom Chicken Bake features juicy chicken breasts baked in a rich garlic-herb cream sauce with mushrooms, spinach, sun-dried tomatoes, and Mediterranean seasonings. It’s elegant enough for guests yet simple enough for a weeknight dinner.

Servings: 6
Prep Time: 20 minutes
Cook Time: 35–40 minutes
Total Time: 1 hour

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🛒 Ingredients

🍗 For the Chicken

• 6 boneless, skinless chicken breasts (about 2–2½ lbs / 900–1100 g)
• 1 tablespoon olive oil
• 1 teaspoon sea salt
• ½ teaspoon black pepper
• 1 teaspoon paprika
• 1 teaspoon dried oregano
• ½ teaspoon garlic powder

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🍄 Mediterranean Mushroom Mixture

• 2 tablespoons olive oil
• 16 oz (450 g) cremini mushrooms, sliced
• 1 medium yellow onion, finely diced
• 5 garlic cloves, minced
• 1 cup baby spinach
• ½ cup chopped sun-dried tomatoes (oil-packed, drained)
• 2 tablespoons fresh parsley, chopped

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🥛 Creamy Mediterranean Sauce

• 1 cup heavy cream
• ½ cup chicken broth
• ½ cup grated Parmesan cheese
• 1 teaspoon Dijon mustard
• 1 teaspoon dried basil
• 1 teaspoon dried oregano
• ½ teaspoon thyme
• ¼ teaspoon crushed red pepper flakes (optional)
• ½ teaspoon salt
• ¼ teaspoon black pepper

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🧀 Topping

• 1 cup shredded mozzarella cheese
• ¼ cup grated Parmesan cheese
• 1 tablespoon chopped parsley

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🔪 Step 1: Prepare the Chicken

1. Preheat oven to 375°F (190°C).
2. Lightly grease a 9×13-inch (23×33 cm) baking dish.
3. Pat chicken breasts dry with paper towels.

Season the Chicken

In a small bowl combine:

• Salt
• Black pepper
• Paprika
• Oregano
• Garlic powder

Rub evenly over both sides of the chicken.

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🍳 Step 2: Sear the Chicken

1. Heat 1 tablespoon olive oil in a large skillet over medium-high heat.
2. Add chicken breasts.

Cook:

• 3–4 minutes per side

You are only browning them, not fully cooking.

Remove and place in the baking dish.

✨ Searing adds extra flavor and helps keep the chicken juicy.

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🍄 Step 3: Cook the Mushroom Mixture

Using the same skillet:

1. Add 2 tablespoons olive oil.
2. Add onions.
3. Cook for 4 minutes until softened.

Add mushrooms.

Cook for 8–10 minutes, stirring occasionally, until:

• Mushrooms release moisture
• Liquid evaporates
• Mushrooms begin to brown

Add garlic.

Cook for 1 minute.

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🌿 Step 4: Add Mediterranean Ingredients

Add:

• Sun-dried tomatoes
• Spinach

Cook for 1–2 minutes until spinach wilts.

Stir in parsley.

Remove from heat.

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🥛 Step 5: Make the Cream Sauce

In a mixing bowl whisk together:

• Heavy cream
• Chicken broth
• Parmesan cheese
• Dijon mustard
• Basil
• Oregano
• Thyme
• Salt
• Pepper
• Red pepper flakes

Whisk until smooth.

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🥘 Step 6: Assemble the Bake

Layer 1

Spread the mushroom mixture evenly over and around the chicken.

Layer 2

Pour the cream sauce over everything.

Make sure the sauce surrounds the chicken.

Layer 3

Sprinkle:

• Mozzarella cheese
• Parmesan cheese

Evenly over the top.

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🔥 Step 7: Bake

Place casserole in the preheated oven.

Bake uncovered for:

30–35 minutes

The dish is done when:

✅ Chicken reaches 165°F (74°C) internally
✅ Sauce is bubbling
✅ Cheese is golden and melted

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✨ Optional Golden Finish

For a browned cheesy top:

1. Switch oven to broil.
2. Broil for 2–3 minutes.

Watch carefully.

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⏲️ Step 8: Rest

Remove from oven.

Allow to rest for:

5–10 minutes

This helps the sauce thicken slightly.

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🌿 Step 9: Garnish

Sprinkle with:

• Fresh parsley
• Extra Parmesan

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🍽️ Serving Suggestions

Serve with:

• 🥔 Roasted potatoes
• 🍚 Rice pilaf
• 🥦 Roasted broccoli
• 🫘 Green beans
• 🥗 Mediterranean salad
• 🥖 Crusty bread

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🌟 Variations

🫒 Greek-Inspired Version

Add:

• ½ cup sliced Kalamata olives
• ½ cup crumbled feta cheese

🍋 Lemon Herb Version

Add:

• Zest of 1 lemon
• 2 tablespoons lemon juice

to the cream sauce.

🧄 Extra Garlic Version

Use:

• 8–10 cloves garlic

for a deeper garlic flavor.

🌶️ Spicy Mediterranean Version

Add:

• 1 chopped chili pepper
• Extra red pepper flakes

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🧊 Storage

Refrigerator

Store covered for up to 4 days.

Freezer

Freeze for up to 2 months.

Reheating

Bake at 350°F (175°C) for 15–20 minutes or until heated through.

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📊 Approximate Nutrition (Per Serving)

• 🔥 Calories: 480–550
• 🍗 Protein: 42–48 g
• 🧀 Fat: 28–34 g
• 🌾 Carbohydrates: 6–10 g