Golden creamy chicken casserole in a white baking dish with melted cheese topping and fresh herbs

Dinner

Creamy Chicken Casserole – Comfort Food at Its Best!

Name: Creamy Chicken Casserole – Comfort Food at Its Best!
Prep time: 20 min
Cook time: 40 min
Total time: 60 min
Yield: 6 servings
Cuisine: American
Ingredients: 4 chicken breasts (2 1/2 lbs); 2 tbsp oil; ½ cup flour, seasoned with salt and pepper; 1 lb mushrooms, sliced; 1 onion, diced; 3 cloves of garlic, minced; 3 tbsp butter; 3 tbsp flour; 1 ½ cups chicken stock; 1 tbsp lemon juice; 1 cup half and half; salt and pepper to taste

This creamy chicken casserole is pure comfort on a plate—rich, easy, and absolutely perfect for feeding a crowd.

5.0 (1)

Prep

20 min

Cook

40 min

Total

1hr

Serves

Style

💰 Everyday

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If you're looking for the ultimate cozy meal, look no further than this Creamy Chicken Casserole! It's rich, flavorful, and packed with tender chicken, all wrapped up in a velvety, creamy sauce. This dish is perfect for those nights when you just need something warm, comforting, and totally satisfying.

What makes this casserole so amazing? It's super easy to throw together! With simple ingredients like cooked chicken, veggies, and a dreamy cream sauce, you can whip it up in no time. Everything bakes together until it's bubbling and golden, and the flavours meld into pure casserole bliss.

Top it off with a crispy breadcrumb or cheese topping for that extra crunch, and you've got a meal that will have everyone coming back for seconds (maybe even thirds!). It's the perfect dish for family dinners, potlucks, or whenever you need a little comfort food magic.

I usually make it for a large group of people. Easy, affordable and quick, this comfort dish is great served over rice, potatoes or pasta!

Creamy Chicken Casserole – Comfort Food at Its Best! preparation step 1

Creamy Chicken Casserole – Comfort Food at Its Best! preparation step 2

Ingredients

Servings:

4 chicken breasts (2 1/2 lbs)
2 tbsp oil
½ cup flour, seasoned with salt and pepper
1 lb mushrooms, sliced
1 onion, diced
3 cloves of garlic, minced
3 tbsp butter
3 tbsp flour
1 ½ cups chicken stock
1 tbsp lemon juice
1 cup half and half
salt and pepper to taste

Instructions

1
Preheat the oven to 350°F (175°C). Heat 2 tablespoons (30ml) of oil in a skillet over medium-high heat until very hot and shimmering.
2
Slice each chicken breast horizontally into 1/2 inch (1.25cm) thick slices. Season generously with salt and pepper. Dredge the chicken in seasoned flour; I personally sift flour on top of the chicken breast instead of dipping it into the flour. Lay the chicken in one layer, without overcrowding the pan, in your preheated skillet and cook for about 3 minutes per side until golden brown. You are just looking to brown the chicken, not cook it all the way through—that will be done in the oven. You may need to do this step in batches. Lay your seared chicken into a 9x13 inch (23x33cm) baking dish.
3
In the same skillet, melt the butter and work to scrape up any delicious brown chicken bits stuck to the pan (fond). Cook your mushrooms until they turn golden. Then cook the onions for about 5 minutes until softened. Add flour and cook for about 3 minutes to cook off the raw flour taste. Add garlic and cook for about 30 seconds until fragrant. Pour a little bit of stock (maybe 1/2 cup/120ml) and whisk vigorously to form a thick paste. Pour the rest of the stock in a steady stream, whisking and working out any lumps. Add cream while whisking and bring to a simmer. Season with salt and pepper and pour the mixture over the chicken.
4
Cover your baking dish and bake in the preheated oven for about 30–40 minutes until the sauce is thickened and the chicken is cooked through. Garnish with parsley and serve over pasta, rice, or potatoes, if desired.

FAQ

Can I make creamy chicken casserole ahead of time?+

Yes! You can assemble the casserole completely, cover it, and refrigerate for up to 24 hours before baking. Add 10-15 minutes to the baking time if cooking from cold. You can also freeze it for up to 3 months—just thaw overnight in the fridge before baking.

What can I substitute for half and half in this recipe?+

You can use heavy cream for a richer dish, or mix equal parts milk and butter as a lighter alternative. Greek yogurt works too, but stir it in after removing from heat to prevent curdling.

Why is my chicken casserole watery or the sauce too thin?+

This usually happens when you skip the roux (butter and flour mixture) or don't let it cook long enough to thicken properly. Make sure you cook the butter-flour paste for 1-2 minutes before adding the stock, and simmer the sauce for a few minutes to reach the right consistency.

What should I serve with creamy chicken casserole?+

Serve it over egg noodles, rice, or mashed potatoes to soak up the creamy sauce. A simple green salad or steamed vegetables like broccoli or green beans balance the richness perfectly.