French Onion Chicken Casserole

French Onion Chicken Casserole Recipe combines tender chicken, caramelized onions, creamy sauce, and a cheesy topping this hearty dish serves 6, takes about 1 hour to prepare, and is perfect for a comforting family dinner or special occasion.

Try More Chicken Recipes:

Jump to Recipe Jump to Video Print Recipe

🧡 Why You’ll Love This French Onion Chicken Casserole Recipe:

Rich Flavor: Combines the sweet, savory taste of caramelized onions with creamy, cheesy goodness.
Easy to Prepare: Simple ingredients and straightforward steps make it suitable for all cooking levels.
Comfort Food: A warm, hearty dish that satisfies on cold days or family gatherings.
Customizable: Adapt the recipe with different cheeses, herbs, or toppings to suit your taste.

❓ What Is French Onion Chicken Casserole Recipe?

French Onion Chicken Casserole Recipe is a comforting baked dish featuring tender chicken, caramelized onions, creamy sauce, and a cheesy topping. It’s a flavorful twist on classic French onion soup, turned into a hearty casserole.

🍗 Ingredients:

4 boneless, skinless chicken breasts (cooked and shredded)
2 large onions, thinly sliced
2 tbsp butter
1 can (10 oz) cream of chicken soup
1 cup sour cream
1 cup shredded mozzarella cheese
½ cup shredded Parmesan cheese
1 cup crushed French fried onions
½ cup chopped nuts (optional, for topping)
Salt and pepper to taste

🍠 Instructions:

Melt butter in a skillet over medium heat. Add onions and cook until golden brown and caramelized, about 20 minutes. Set aside.
In a mixing bowl, combine cream of chicken soup, sour cream, salt, and pepper. Mix well.
In a greased baking dish, layer shredded chicken, caramelized onions, and the prepared sauce. Sprinkle mozzarella and Parmesan cheese evenly over the top.
Spread crushed French fried onions and nuts (if using) over the cheese layer.
Preheat the oven to 375°F (190°C) and bake for 25–30 minutes, or until bubbly and golden on top.
Let the casserole rest for 5 minutes before serving.

📍 Recipe Tips

Caramelize Slowly: For the best flavor, cook the onions over low to medium heat, stirring occasionally, to achieve deep caramelization.
Use Rotisserie Chicken: Save time by using rotisserie chicken for a quick and flavorful base.
Customize the Cheese: Substitute mozzarella with Gruyere for an authentic French onion flavor.
Add Herbs: Sprinkle fresh thyme or parsley on top for added freshness and aroma.

🥗 What To Serve With French Onion Chicken Casserole?

Serve French Onion Chicken Casserole with crusty bread, Chicken Caesar Salad, or roasted vegetables it also pairs well with mashed potatoes or rice for a complete meal.

🎚 How To Store Leftover French Onion Chicken Casserole?

Refrigeration: Store leftover french onion chicken casserole in an airtight container in the refrigerator for up to 3 days.
Freezing: Freeze leftover french onion chicken casserole in a freezer-safe container for up to 3 months. Thaw in the refrigerator overnight before reheating.

🥵 How To Reheat Leftover French Onion Chicken Casserole?

In The Oven: Preheat the oven to 350°F (175°C) cover leftover french onion chicken casserole with foil and heat for 5 minutes or until warmed through.
In The Microwave: Place leftover french onion chicken casserole in a microwave-safe dish and heat for up 3 minutes stirring between, until hot.

FAQs

How long does it take to make French Onion Chicken Casserole?

French Onion Chicken Casserole takes about 1 hour to prepare and bake. This includes 20 minutes for caramelizing onions and 30 minutes of baking time.

How do I prevent French Onion Chicken Casserole from drying out?

To keep French Onion Chicken Casserole moist, ensure there’s enough sauce to coat the chicken thoroughly. Baking the casserole covered for the first 15 minutes can also help retain moisture.

What’s the best type of chicken to use in French Onion Chicken Casserole?

Cooked and shredded chicken breast or thigh meat works best in French Onion Chicken Casserole. Rotisserie chicken is a convenient and flavorful option for this recipe.

What’s the best way to caramelize onions for French Onion Chicken Casserole?

Caramelize onions slowly over medium heat in butter, stirring frequently. This process takes about 20 minutes and ensures the onions are deeply golden and sweet, adding rich flavor to your French Onion Chicken Casserole.

Can I make French Onion Chicken Casserole ahead of time?

Yes, French Onion Chicken Casserole can be prepared in advance. Assemble all the layers in your baking dish, cover tightly, and refrigerate for up to 24 hours. When ready to serve, bake it fresh for the best results.

More Chicken Recipes: