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One-Pot Chicken Casserole with Mushrooms

A mouth-watering taste with tender chicken meat, delicious mushrooms, sauce, and various ingredients: Classic Chicken Casserole with Mushrooms recipe.

March 17, 2023
Difficulty Medium
Servings 4-6 people
Preparation 20 mins
Cooking 15 mins
Total 35 mins



  1. First add olive oil to the pot, seal the outer parts of the chickens.
  2. When the chickens change color, remove them from the pan and start cooking the sliced pastrami.
  3. When the pastrami changes color, take them out of the pot and leave to stand.
  4. Then add finely chopped onion and diced potatoes to the pan and cook for a while.
  5. When onions and potatoes begin to change color, continue to roast by adding chopped mushrooms.
  6. After adding the chicken and bacon to the pot again, add chicken broth and fresh thyme to it and cook for about 10-15 minutes. Season it with salt and pepper.
  7. After cooking, you can rest it for a short time and serve it.
Nutrition Facts
Serving Size 1 Chicken Casserole with Mushrooms
Serves 4-6
Amount Per Serving
% Daily Value*
Cholesterol 127 mg42.3%
Sodium 604 mg26.3%
Potassium 367 mg7.8%
Protein 31.9 g63.8%
Total Fat 27.8 g35.6%
*The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.


  • Use boneless, skinless chicken breasts or thighs. Cut them into small pieces so that they cook evenly.
  • You can use any type of mushroom. Cremini and button mushrooms are perfect for this recipe. For more, you can check out our 'Types of Edible Mushrooms' article.
  • You can use canned mushrooms instead of fresh ones. But fresh mushrooms will give the casserole a better taste and texture.
  • Saute the mushrooms first. This helps them release their moisture.
  • You can also add other vegetables such as broccoli, carrots, celery, or bell peppers.
  • You can use cream of chicken soup and chicken stock to make a creamy sauce. You can also use vegetable broth instead of chicken broth.
  • You use bacon instead of pastrami.
  • If a lot of water remains after cooking, you can boil the water in a separate pan to make a delicious sauce from it.
  • Add fresh herbs and spices, such as thyme and rosemary.
  • You can add some chopped bacon to the casserole for extra flavor and texture.
Rate This Recipe

It is possible to see different recipes of chicken in the world cuisine, which has an important role in meeting the protein needs of people with its egg and meat. With this chicken casserole recipe that belongs to the American cuisine, it tastes great as pastrami and mushrooms are blended to achieve a unique harmony.

It's the perfect dish for any occasion, whether you're hosting a busy weeknight family dinner or a dinner party for friends. You can customize it with different vegetables, spices, and herbs to suit your taste. With its rich flavors, this one pot chicken casserole will please your family.

This recipe, which can be prepared in 20 minutes and has a cooking time of 15 minutes, is for you to prepare a delicious main course. Bon Appetit!

How To Make Chicken Casserole with Creamy Mushrooms in the Oven?

To make a creamy chicken and mushroom casserole in the oven,

  • Preheat the oven to 375 °F (190 °C).
  • Add olive oil to a large skillet over medium-high heat and cook the chicken thighs or breasts for about 5 minutes, until golden brown. Remove from the pan and set aside.
  • Add the sliced mushrooms to the same pan and cook for about 5 minutes until they are tender.
  • Add the minced garlic and dried thyme to the pan and cook for 1 minute, stirring constantly.
  • Add chicken stock and heavy cream to the pan and stir to combine.
  • Add grated Parmesan cheese, salt, and pepper. Stir to combine the ingredients.
  • Bring the mixture to a simmer and cook for 5-7 minutes, until the sauce thickens.
  • Add the cooked chicken to the pan and cook while stirring.
  • Transfer the mixture to a 9x13 inch baking dish.
  • Bake in the preheated oven for 25-30 minutes, or until the casserole is hot and bubbly.
  • Let cool for a few minutes before serving.

What Is The Best Type of Mushroom for a Chicken Casserole with Mushrooms?

The best types of mushrooms for chicken casserole are cremini or button mushrooms. These mushrooms have a firm texture. Their flavor is light and earthy. They also release moisture when cooked, which helps keep chicken moist and flavorful.

However, other types of mushrooms can be used, such as shiitake, portobello, or oyster mushrooms. But these types of mushrooms have a softer texture.

For more, you can check out our 'Types of Edible Mushrooms' article.

What To Serve with Chicken Casserole with Mushrooms?

Chicken casserole with mushrooms is a hearty and delicious main dish. Grilled or roasted vegetables are flavorful side dishes that pair well with chicken casserole. It goes well with mashed potatoes, egg noodles or pasta.

Here are our delicious recipes that you can serve with Mushroom Chicken Casserole:

How To Store Mushroom Chicken Casserole?

To store this mushroom chicken casserole, follow these steps:

  • Let the casserole cool to room temperature.
  • Divide it into individual portions or leave it in the casserole dish.
  • Cover it tightly with cling film or aluminum foil. Transfer to an airtight container.
  • Store it in the refrigerator for up to 3 days.
  • When the casserole is left in the refrigerator for several days, it may develop a sour or bad taste. Discard the casserole if it smells bad or has changed color.

Can Mushroom Chicken Casserole Be Frozen?

Yes, you can freeze chicken casserole for later use. To freeze it,

  • Let the casserole cool at room temperature.
  • Divide it into portions or freeze it whole.
  • Wrap it in cling film or aluminum foil.
  • Freeze it for up to 3 months in a sealed container or freezer bag.

How To Reheat Mushroom Chicken Casserole?

To reheat a chicken casserole with mushrooms, you can use one of the following methods:

Oven: To reheat the casserole you have stored in the refrigerator, remove the foil and heat it in a preheated 356 °F (180 °C) oven for 20-25 minutes or until fully heated.

To reheat frozen chicken casserole, thaw the casserole in the refrigerator the night before. Next, remove the cling film and foil. Heat it in a preheated 350 °F (180 °C) oven for 20-25 minutes or until fully heated.

Microwave: Transfer the casserole to a microwave-safe plate. Cover with a foil or cling film. Microwave on high for 2-3 minutes, or until fully heated. Stir the casserole halfway through the reheating process.

Stovetop: Transfer the casserole to the pot. Heat it over medium-low heat, stirring occasionally, until fully heated through.

Reheating time may vary depending on the portion size and the power of the oven or microwave. To ensure the chicken is safe to eat, make sure the casserole reaches an internal temperature of 165 °F (74 °C) when heated before serving.

Can Mushroom Chicken Casserole Be Made Ahead?

Yes, chicken casserole with mushrooms can be made ahead of time. To prepare the casserole ahead of time, follow these steps:

  • Prepare the casserole as instructed in the recipe.
  • Wrap it in plastic wrap and transfer it to an airtight container. Refrigerate for up to 24 hours before cooking. Alternatively, you can freeze the casserole for up to 2-3 months. Follow the instructions above to store the casserole in the refrigerator or freezer.
  • Preheat the oven before cooking the casserole.
  • If you have stored the casserole in the refrigerator, remove the plastic wrap and bake it for 30-40 minutes, or until fully heated through. If you have frozen the casserole, remove the plastic wrap and foil and bake it for 45-60 minutes, or until fully warmed up.
  • Let the casserole cool for a few minutes before serving.
Recipe byPetite Gourmets

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