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Home » Recipes » Casserole Recipes

French Onion Chicken Casserole

Published: Jan 3, 2022 Last Updated: Jan 26, 2023 by Marye 1177 words. | About 6 minutes to read this article.

If you love the soup you'll love this hearty French onion chicken casserole! It's the ultimate comfort food with gooey cheese, caramelized onions, noodles, and tender chicken.
Total time 40 minutes
Jump to Recipe Pin Recipe
Closeup of the casserole with a wooden spoon in it. Text overlay for Pintereszt.

Cold, tired, and ready for some amazing comfort food? You've got to try this quick dinner recipe!

Overhead view of a casserole with title text overlay.
Jump to:
  • ❤️ Why you'll love it
  • 🧾 Ingredients
  • 🔪 Instructions
  • 🥄 Equipment
  • 🥫 Storage
  • 📖 Variations
  • 💭 Tips
  • 👩‍🍳 FAQs
  • 📚 Related recipes
  • 🍽️ Serve with...
  • 📞 The last word
  • French Onion Chicken Casserole

❤️ Why you'll love it

  • This hearty chicken dinner recipe is easy to make and is loaded with flavor.
  • It's sure to become a family favorite!
  • A comforting casserole that warms you up on those chilly nights.
  • A great dinner idea on busy weeknights nights when you don't have much time.

Caramelized onions, juicy chicken, and tender egg noodles are layered with gooey Swiss cheese and topped with buttery crumbs for a family friendly dinner that really hits the spot!

It's one of those easy recipes you serve again and again. And, if you're looking for side dishes you'll want to check out What to Serve with Chicken Cordon Bleu Casserole. The recipes go with this, too!

🧾 Ingredients

Labeled ingredients for this recipe.

The following are affiliate links. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

  • egg noodles
  • butter
  • onions
  • all-purpose flour
  • packet of onion soup mix
  • beef stock
  • chicken
  • Swiss cheese
  • panko bread crumbs

🔪 Instructions

For full instructions please scroll down to the green recipe card at the bottom of the page.

Step by step images showing how to make this recipe.
  1. Caramelize onions and make the creamy sauce in a large skillet.
  2. Mix together chicken, pasta, and sauce.
  3. Layer the noodle mixture with cheese in a 9x13 baking pan.
  4. Bake at 350 degrees for 20 minutes. Melt butter, mix with crumbs, and top the casserole then bake 10 more minutes.

🥄 Equipment

The following are affiliate links. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

You'll need the following items to make this creamy chicken casserole successfully.

  • small mixing bowl

🥫 Storage

Closeup of casserole dish with a serving of pasta being removed.

Store any leftovers in an airtight container in the fridge for up to three days.

Leftovers can also be frozen for up to three months. Be sure to wrap well in plastic wrap or aluminum foil.

Thaw overnight in the refrigerator before heating up in a 325F oven.

📖 Variations

  • Try using different types of pasta like shells or ziti.
  • You can also add in your favorite vegetables like broccoli, carrots, or peas.
  • If you want a bit more of a kick, try adding some red pepper flakes.
  • Swap out of the beef broth for chicken broth if you prefer the flavor of chicken broth.
  • Mozzarella cheese, Cheddar cheese, or Gruyere cheese would make a great substitute for the Swiss cheese.
  • Crispy fried onions are a great substitute for the breadcrumbs!

💭 Tips

Expert Tip: Be sure to stir your roux often when you are making the sauce so that it doesn't burn.

  • If you're not in the mood for pasta, try using cooked rice or quinoa instead.
  • The amount of salt you use will depend on the brand of soup mix and beef stock. I used Lipton. You might need to adjust if needed.
  • Make sure to stir the sauce continuously to prevent lumps from forming.

👩‍🍳 FAQs

Can I use leftover rotisserie chicken?

Yes, And, you can also use poached chicken as well.

Can I make this in advance?

Yes, you can prepare the casserole then foil in foil and place it in the fridge overnight. Then bake per the directions.

How do I reheat?

Reheat in the oven at 325 degrees for 10 to 15 minutes or until warm.

Overhead view of a plate of pasta.

📚 Related recipes

  • John Wayne Casserole is beefy and cheesy and a family-casserole you will want to try.
  • Are you looking for a comforting and savory chicken casserole? This Chicken and Stuffing Casserole is what you are looking for.
  • Tuna Casserole is an old-fashioned recipe that is just like Grandma used to make.
  • This Hamburger Noodle Casserole is cheesy and creamy and full of savory flavors.
  • Meat Lover's Tater Tot Pizza Casserole
  • One Pot Chicken Alfredo with Peas
  • Ground Beef Dorito Casserole
  • Sweet Potato Chicken Pot Pie Casserole

🍽️ Serve with...

Southern Style Green Beans go well as a side for this creamy casserole.

If you enjoy a side salad, give this Classic Pea Salad a try.

Nothing is better than a baguette warm from the oven and dripping with butter.

Fluffy and cheesy! These Cheese Biscuits go well with this dish.

A Bourbon Cake is a southern tradition that pairs well with most recipes.

📞 The last word

We all need another easy dinner recipe that is so delicious that it's perfect for serving to company, too!

Well y'all, here it is!

If you're looking for old fashioned comfort food try this creamy chicken and noodles recipe.

If you click on the number of servings in the recipe card you can adjust the measurements up or down for the exact number of servings you need. Don't forget that you can click on "add to collection" to save it to your own, private recipe box!

If you love this recipe please give it 5 stars! ⭐️⭐️⭐️⭐️⭐️

Closeup of the finished casserole.
4.58 from 7 votes

French Onion Chicken Casserole

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If you love the soup you'll love this hearty French onion chicken casserole! It's the ultimate comfort food with gooey cheese, caramelized onions, noodles, and tender chicken.
Course Main Dish - Chicken
Cuisine American - Vintage
Prep Time: 5 minutes
Cook Time: 35 minutes
Total Time: 40 minutes
Servings:8
Calories:453
Author:Marye Audet-White
As an Amazon Associate I earn from qualifying purchases.

Equipment Needed

  • Iron Skillet
  • 13x9-inch pan

Ingredients

  • 8 ounces pasta, cooked and drained
  • ¼ cup butter
  • 6 cups onions, halved and sliced thinly - about 2 large onions
  • ¼ teaspoon kosher salt
  • ¼ teaspoon pepper
  • 2 tablespoons all-purpose flour
  • 1 ounce onion soup mix
  • 2 ¼ cups beef stock
  • 2 cups chicken , cooked and shredded
  • 8 ounces Swiss cheese, shredded (2 cups)

Topping

  • 2 tablespoons butter, melted
  • 1 cup Panko crispy bread crumbs

I earn a commission from Instacart from qualifying purchases.

Instructions

  • Heat oven to 350°F.
  • Spray 13x9-inch (3-quart) glass baking dish with cooking spray; set aside.
  • Cook and drain pasta as directed on package.
  • In 12-inch nonstick skillet, heat ¼ cup butter over medium-high heat.
  • Add onions, salt and pepper.
  • Cook 11 to 12 minutes, stirring occasionally, until onions are tender.
  • Reduce heat to medium; cook 10 to 12 minutes, stirring occasionally, until onions are starting to brown.
  • Sprinkle flour over onions in skillet; cook and stir about 1 minute.
  • Stir in broth; heat to boiling, stirring constantly.
  • Simmer 1 to 2 minutes or until slightly thickened.
  • Remove from heat; stir in chicken and cooked pasta, mixing to combine.
  • Add half of the mixture to baking dish.
  • Sprinkle with half of the cheese.
  • Top with remaining pasta mixture, then remaining cheese.
  • Cover with aluminum foil and bake 20 minutes.

Topping

  • In small bowl mix the breadcrumbs and melted butter.
  • Remove the aluminum foil, sprinkle with the breadcrumb mixture and bake 10 more minutes, or until crispy and golden brown.

Notes

Expert Tip: Be sure to stir your roux often when you are making the sauce so that it doesn't burn.
  • If you're not in the mood for pasta, try using cooked rice or quinoa instead.
  • The amount of salt you use will depend on the brand of soup mix and beef stock. I used Lipton. You might need to adjust if needed.
  • Make sure to stir the sauce continuously to prevent lumps from forming.
Store any leftovers in an airtight container in the fridge for up to three days.
Leftovers can also be frozen for up to three months. Be sure to wrap well in plastic wrap or aluminum foil.
Thaw overnight in the refrigerator before heating up in a 325F oven.

Nutrition Facts

Calories: 453kcal | Carbohydrates: 44g | Protein: 21g | Fat: 22g | Saturated Fat: 12g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 70mg | Sodium: 702mg | Potassium: 484mg | Fiber: 4g | Sugar: 7g | Vitamin A: 543IU | Vitamin C: 9mg | Calcium: 288mg | Iron: 2mg

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    About Marye

    With a 40 year focus on the importance of family and a passion for southern comfort food, Marye Audet-White is an expert in melding the two together effortlessly. Marye's a NY Times Bestselling author with 10 cookbooks under her belt and her recipes have been featured in Good Housekeeping, Country Living, Today, House Beautiful, Texas Living, Food & Wine, and many more.

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