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Easy Chicken and Mushroom Casserole with Creamy Sauce

By Published Updated Dinner
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Tender chicken baked with sautéed mushrooms in a rich creamy sauce made with chicken broth, lemon, and half-and-half.

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Prep20 minutes
Cook40 minutes
Total60 minutes
Serves8 servings
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Easy Chicken and Mushroom Casserole with Creamy Sauce

Tender chicken baked with sautéed mushrooms in a rich creamy sauce made with chicken broth, lemon, and half-and-half.

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Prep Time
20 minutes
Cook Time
40 minutes
Total Time
60 minutes
Yield
8 servings
Course
Dinner
Cuisine
Not listed
Servings
8 servings
Calories
520 calories

Ingredients

  • 2 1/2 lbs chicken breasts, cut into 1-inch thick strips
  • 1 1/2 teaspoons sea salt
  • 1/4 teaspoon black pepper
  • 1 cup all-purpose flour for dredging
  • 6 tablespoons olive oil, divided
  • 1 lb white mushrooms, thickly sliced
  • 1 medium onion, finely diced
  • 3 garlic cloves, minced
  • 3 tablespoons unsalted butter
  • 3 tablespoons all-purpose flour
  • 1 1/2 cups chicken broth
  • 1 tablespoon lemon juice
  • 1 cup half-and-half
  • Fresh herbs for garnish (optional)

Instructions

  1. Preheat the oven to 350°F (175°C). Season the chicken strips with sea salt and black pepper, then dredge them lightly in flour.
  2. Heat 3 tablespoons olive oil in a large skillet over medium heat. Cook the chicken in batches for 4 to 5 minutes per side until golden. Transfer the browned chicken to a baking dish.
  3. In the same skillet, add the remaining 3 tablespoons olive oil. Sauté the sliced mushrooms for about 5 minutes until golden and tender. Remove and set aside.
  4. Add the diced onion and minced garlic to the skillet and cook for 2 to 3 minutes until softened.
  5. Melt the butter in the skillet and stir in the flour to form a roux. Cook for 1 to 2 minutes while stirring.
  6. Gradually whisk in the chicken broth until smooth. Add the lemon juice and half-and-half and simmer gently until the sauce thickens.
  7. Return the mushrooms to the skillet and stir to coat them in the sauce.
  8. Pour the mushroom cream sauce over the chicken in the baking dish.
  9. Bake uncovered for 25 to 30 minutes until the chicken is cooked through and the sauce is bubbling.
  10. Serve hot and garnish with fresh herbs if desired.

Nutrition

Calories520 calories
Protein48 g
Carbohydrates18 g
Fat28 g
SodiumNot listed
SugarNot listed
FiberNot listed

When you need a comforting, satisfying meal that feels both hearty and elegant, this Creamy Chicken and Mushroom Casserole delivers everything you want in a dinner recipe. Tender chicken strips are seared until golden, then baked with sautéed mushrooms in a rich cream sauce made with chicken broth, lemon juice, and half-and-half.

The result is a dish that’s creamy, savory, and incredibly flavorful. The mushrooms add depth and earthiness while the lemon juice brightens the sauce, creating a balanced flavor that keeps the casserole from feeling too heavy.

Perfect for family dinners or cozy gatherings, this casserole is a wonderful way to bring comforting homemade cooking to the table.

Why I Love This Recipe

This casserole has become one of my favorite comfort meals.

Here’s why it’s so great:

  • Rich and creamy mushroom sauce
  • Tender, golden-browned chicken
  • Simple pantry ingredients
  • Perfect for feeding a crowd
  • Great leftovers for meal prep

Because the casserole is rich and savory, I like pairing it with something lighter like Easy Homemade Caesar Salad with Chicken to balance the meal.

Tips for the Best Chicken Casserole

Brown the chicken first

This step adds flavor and helps keep the chicken juicy.

Don’t rush the roux

Cooking the flour properly prevents a raw flour taste.

Use medium heat

High heat can cause the sauce to separate.

Let the casserole rest

Allowing it to sit for a few minutes thickens the sauce beautifully.

Serving Suggestions and Pairings

This creamy chicken casserole pairs well with both comforting and fresh sides.

Some great options include:

  • Buttery mashed potatoes
  • Steamed rice or egg noodles
  • Roasted vegetables

For lighter sides, try:

If you enjoy creamy pasta dishes, you might also like Fettuccine Alfredo – The Creamy Pasta That Became a Comfort Food Favorite.

For dessert, something sweet like Moist 1-Bowl Banana Bread – The Easy Recipe That Never Fails makes a comforting finish.

Nutritional Information (Per Serving)

Approximate values:

  • Calories: 520
  • Fat: 28 g
  • Carbohydrates: 18 g
  • Protein: 48 g

This meal provides a hearty serving of protein with rich flavor from the creamy mushroom sauce.

Storage and Leftover Tips

This casserole stores well and reheats beautifully.

Refrigeration

  • Store in an airtight container
  • Keeps for 3–4 days

Freezing

  • Freeze portions for up to 2 months

Reheating

  • Reheat in the oven at 325°F for about 15–20 minutes
  • Add a splash of broth or cream if needed

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Final Thoughts

This Creamy Chicken and Mushroom Casserole is the ultimate comfort food dinner. With golden-browned chicken, tender mushrooms, and a rich creamy sauce, it’s a dish that feels both satisfying and homemade.

Whether you’re cooking for a family dinner, meal prep, or a cozy weekend meal, this casserole delivers warm, comforting flavor in every bite.

If you give it a try, I’d love to hear how it turned out and what side dishes you paired with it!

Why You?ll Love This Recipe

This Easy Chicken and Mushroom Casserole with Creamy Sauce is built for home cooks who want a reliable Dinner without turning dinner or dessert into a project. The ingredient list stays approachable, the method is clear, and the finished dish gives you the kind of comfort-food payoff that makes a recipe worth saving.

Because the recipe card below keeps the exact measurements and steps organized, this article focuses on the practical details that help the recipe come out better: timing, texture, ingredient choices, storage, serving ideas, and simple ways to adjust the flavor for your table.

Tips for the Best Results

Use the listed times as a guide, but remember that cookware, appliance strength, ingredient size, and starting temperature can all affect the final result. This recipe lists 20 minutes of prep time, 40 minutes of cook time, and about 60 minutes total time, which makes it easier to plan around dinner, parties, or weekend cooking.

Season thoughtfully. Many comfort-food recipes use flavorful packaged ingredients, cheese, sauces, or seasoning blends, and those can vary in salt level. Taste when it is safe to do so, then adjust at the end. A small amount of acid, fresh herbs, black pepper, or a creamy topping can make the finished dish feel more balanced.

Easy Variations

You can adapt this recipe based on what your family likes. Keep the main method the same, then change the seasoning, topping, vegetable, or serving style. If you want more heat, add a spicy element. If you want something milder, reduce strong seasonings and finish with a creamy or fresh topping.

For a heartier version, serve it with a simple side such as rice, potatoes, salad, bread, or roasted vegetables. For a lighter version, pair it with crisp greens or fresh fruit, depending on whether the recipe is savory or sweet.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator once the food has cooled. Most cooked dishes keep well for three to four days, while many desserts keep best when covered tightly so they do not dry out.

Reheat gently when possible. A microwave is convenient for individual portions, but an oven, skillet, or air fryer can help bring back texture when the recipe has a crisp, baked, or toasted element.

What to Serve With It

This recipe makes 8 servings, so it can work as a main dish, side, dessert, or shareable recipe depending on the category. For savory recipes, pair it with something fresh or simple so the meal does not feel too heavy. A salad, roasted vegetable, bread, rice, or potatoes can round out the plate.

For sweeter recipes, serve smaller portions with coffee, milk, whipped cream, fresh fruit, or a simple scoop of vanilla ice cream. The goal is to support the main flavor rather than cover it up.

Food Safety and Doneness

Use visual cues and safe cooking temperatures when judging doneness. For meat, poultry, seafood, and egg-based recipes, an instant-read thermometer is the most reliable tool. You can review official guidance on the USDA safe minimum internal temperature chart.

For baked goods and desserts, look for the texture cues in the recipe card: set centers, golden edges, clean tester marks, or proper chilling time. Letting a recipe rest before serving often improves texture and makes slicing or plating easier.

Food Safety Source

For safe cooking temperatures and food handling basics, see the USDA safe minimum internal temperature chart.

Frequently Asked Questions

Can I make Easy Chicken and Mushroom Casserole with Creamy Sauce ahead of time?

You can usually prepare some parts ahead of time, but follow the storage and reheating notes in the recipe for the best texture and food safety.

How should I store leftovers?

Store leftovers in an airtight container in the refrigerator. Use the storage instructions on this page when available, and reheat gently until hot.

Can I change the ingredients?

Yes. Most home-style recipes can be adjusted for taste, but keep the core cooking method and safe internal temperatures in mind when changing proteins or cook times.

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