Chicken and Mushroom Gratin


Savor the ultimate comfort food experience with our Chicken and Mushroom Gratin recipe. Bursting with rich flavors and creamy textures, this hearty dish is a perfect choice for cozy family dinners or entertaining guests on special occasions. In this article, we’ll guide you through the steps to create this delectable gratin, sharing tips for success and serving suggestions to make every bite memorable. Get ready to elevate your comfort food game with this irresistible Chicken and Mushroom Gratin!

The Allure of Chicken and Mushroom Gratin: Chicken and Mushroom Gratin combines tender chicken, earthy mushrooms, and creamy sauce, all topped with a golden layer of cheese and breadcrumbs. This classic dish is beloved for its comforting qualities and versatility. Whether served as a main course with a side salad or as a side dish alongside roasted vegetables, it’s sure to become a favorite in your recipe repertoire.


To create Chicken and Mushroom Gratin, you’ll need the following ingredients:

  • Chicken breasts or thighs
  • Mushrooms (such as cremini or button)
  • Onion
  • Garlic
  • Butter
  • All-purpose flour
  • Chicken broth
  • Heavy cream
  • Thyme
  • Parmesan cheese
  • Breadcrumbs
  • Salt and pepper


  1. Prepare the Chicken and Mushrooms: Start by sautéing diced onions and minced garlic in butter until softened. Add sliced mushrooms and cook until they release their moisture and become golden brown. Remove the mixture from the pan and set aside.
  2. Make the Creamy Sauce: In the same pan, melt more butter and whisk in flour to create a roux. Gradually pour in chicken broth and heavy cream, stirring constantly until the sauce thickens. Season with thyme, salt, and pepper to taste.
  3. Combine Chicken, Mushrooms, and Sauce: Add cooked chicken (either diced or shredded) to the sauce along with the sautéed mushrooms and onions. Stir until everything is evenly coated in the creamy sauce.
  4. Assemble the Gratin: Transfer the chicken and mushroom mixture to a baking dish and spread it out evenly. Sprinkle grated Parmesan cheese over the top, followed by a layer of breadcrumbs for added crunch.
  5. Bake to Perfection: Place the baking dish in a preheated oven and bake until the gratin is bubbling and golden brown on top. This typically takes about 25-30 minutes.
  6. Serve and Enjoy: Once baked, remove the Chicken and Mushroom Gratin from the oven and let it cool for a few minutes before serving. Garnish with fresh thyme or parsley if desired, then dig in and enjoy the comforting flavors!

Serving and Storage Tips for Chicken and Mushroom Gratin:


  1. Garnish for Visual Appeal: Before serving, garnish the Chicken and Mushroom Gratin with fresh herbs such as parsley or thyme. Not only do they add a pop of color, but they also enhance the presentation and aroma of the dish.
  2. Pairing Suggestions: Serve the gratin alongside a crisp green salad dressed with a light vinaigrette to balance out the richness of the dish. Alternatively, pair it with steamed vegetables or roasted potatoes for a hearty and satisfying meal.
  3. Portion Control: When serving, use a spatula to carefully portion out individual servings of the gratin to ensure each plate receives an equal amount of chicken, mushrooms, sauce, and crispy topping.


  1. Refrigeration: Store any leftover Chicken and Mushroom Gratin in an airtight container or covered baking dish in the refrigerator. Be sure to allow the dish to cool completely before transferring it to the fridge.
  2. Consumption Timeline: Consume the leftover gratin within 3-4 days to ensure optimal freshness and flavor. Reheat individual portions in the microwave or oven until heated through before serving.
  3. Freezing: While Chicken and Mushroom Gratin can be frozen for longer-term storage, be aware that the texture of the creamy sauce may change slightly upon thawing. If freezing, portion the gratin into individual servings and wrap tightly in plastic wrap or aluminum foil before placing in a freezer-safe container.
  4. Reheating: To reheat frozen or refrigerated gratin, preheat the oven to 350°F (175°C) and bake uncovered until heated through, approximately 20-25 minutes for refrigerated gratin and 40-45 minutes for frozen gratin. Alternatively, reheat individual portions in the microwave until piping hot.

By following these serving and storage tips, you can enjoy the delicious flavors of Chicken and Mushroom Gratin while maximizing freshness and minimizing food waste.

Variations of Chicken and Mushroom Gratin: Elevate Your Comfort Food Game!

  1. Spinach and Artichoke Chicken Gratin:
    • Incorporate chopped spinach and marinated artichoke hearts into the creamy sauce mixture for a vibrant twist on the classic gratin. The combination of earthy spinach and tangy artichokes adds depth of flavor and a pop of color to the dish.
  2. Sun-Dried Tomato and Basil Chicken Gratin:
    • Add chopped sun-dried tomatoes and fresh basil leaves to the chicken and mushroom mixture before baking. The sun-dried tomatoes lend a sweet and tangy flavor, while the basil adds a fragrant herbaceous note, creating a Mediterranean-inspired gratin.
  3. Broccoli and Cheddar Chicken Gratin:
    • Introduce steamed broccoli florets and shredded cheddar cheese to the gratin for a comforting combination of flavors and textures. The tender broccoli adds freshness and a vibrant green color, while the melted cheddar cheese provides richness and a gooey texture.
  4. Bacon and Gruyère Chicken Gratin:
    • Crumble cooked bacon and sprinkle it over the chicken and mushroom mixture before baking for a savory and indulgent variation. Top the gratin with shredded Gruyère cheese for a nutty and melty finish that takes this dish to the next level of deliciousness.
  5. Italian Herb and Mozzarella Chicken Gratin:
    • Infuse the gratin with Italian flavors by seasoning the chicken and mushroom mixture with dried Italian herbs such as oregano, basil, and thyme. Top the gratin with slices of fresh mozzarella cheese for a gooey and melty topping that adds creaminess and richness.


  1. Can I use chicken thighs instead of chicken breasts in the gratin?
    • Yes, you can use chicken thighs instead of chicken breasts in the gratin. Thighs tend to be juicier and more flavorful, but be sure to adjust the cooking time accordingly as they may require a few extra minutes in the oven.
  2. Can I make the gratin ahead of time and bake it later?
    • Absolutely! You can assemble the gratin ahead of time and refrigerate it until you’re ready to bake. Simply cover the baking dish with plastic wrap or foil and store it in the refrigerator for up to 24 hours before baking as directed.
  3. Can I use different types of mushrooms in the gratin?
    • Yes, you can use a variety of mushrooms in the gratin, such as cremini, shiitake, or even wild mushrooms like chanterelles or porcini for added depth of flavor. Feel free to mix and match or use your favorite mushrooms for a personalized touch.
  4. Can I make the gratin gluten-free?
    • Yes, you can make the gratin gluten-free by using gluten-free breadcrumbs or omitting them altogether. Additionally, you can substitute all-purpose flour with a gluten-free flour blend or cornstarch to thicken the sauce.
  5. What can I serve alongside the chicken and mushroom gratin?
    • Chicken and Mushroom Gratin pairs well with a variety of side dishes, such as roasted vegetables, steamed greens, mashed potatoes, or a crisp green salad dressed with a light vinaigrette. Choose sides that complement the creamy and savory flavors of the gratin.
  6. Can I freeze leftovers of the gratin?
    • Yes, you can freeze leftovers of the gratin for future enjoyment. Allow the gratin to cool completely, then transfer individual portions to freezer-safe containers or wrap them tightly in plastic wrap and aluminum foil before freezing. Thaw in the refrigerator overnight before reheating.
  7. How do I reheat the gratin?
    • To reheat the gratin, preheat the oven to 350°F (175°C) and bake it, covered with foil, until heated through, typically 20-25 minutes for refrigerated gratin and 40-45 minutes for frozen gratin. Alternatively, you can microwave individual portions until hot.
  8. Can I make the gratin vegetarian?
    • Yes, you can make a vegetarian version of the gratin by omitting the chicken and using vegetable broth instead of chicken broth in the sauce. You can also add extra vegetables such as spinach, bell peppers, or zucchini for added flavor and texture.
  9. What herbs can I use to flavor the gratin?
    • You can use a variety of herbs to flavor the gratin, such as thyme, rosemary, sage, or parsley. Fresh herbs are best, but you can also use dried herbs if that’s what you have on hand. Experiment with different herb combinations to find your favorite flavor profile.
  10. How can I make the gratin more indulgent?
  • To make the gratin more indulgent, you can add ingredients like bacon, Gruyère cheese, or heavy cream to the sauce for extra richness and flavor. Be mindful of portion sizes and enjoy this decadent dish as an occasional treat.


Treat yourself and your loved ones to the comforting flavors of Chicken and Mushroom Gratin. With its creamy sauce, tender chicken, and earthy mushrooms, this dish is sure to warm your soul and satisfy your cravings. Whether enjoyed as a cozy weeknight meal or served at a special gathering, Chicken and Mushroom Gratin is a timeless classic that never disappoints. So gather your ingredients, preheat your oven, and get ready to indulge in pure comfort with every bite!

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