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French Onion Chicken Noodle Casserole

A close-up of a serving of french onion chicken noodle casserole with a crispy, golden-brown topping.
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Make this hearty, comforting French Onion Chicken Noodle Casserole for a satisfying weeknight family dinner. It combines the deep flavor of caramelized onions and Gruyère cheese with classic chicken and noodles.

Ingredients

Scale
  • 1 tablespoon olive oil
  • 2 large yellow onions, thinly sliced
  • 1 teaspoon salt, divided
  • 1/2 teaspoon black pepper, divided
  • 1 pound dried egg noodles
  • 2 cups cooked, shredded chicken breast
  • 1 (10.5 ounce) can condensed cream of chicken soup
  • 1 cup beef broth (or onion broth for deeper flavor)
  • 1/2 cup sour cream or plain Greek yogurt
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon dried thyme
  • 1 cup shredded Gruyère cheese, divided
  • 1/2 cup shredded Swiss cheese
  • 1/4 cup panko breadcrumbs (optional, for topping)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9×13 inch baking dish.
  2. Caramelize the onions: Heat olive oil in a large skillet over medium heat. Add the sliced onions, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Cook slowly, stirring occasionally, for 20 to 30 minutes until the onions are deep golden brown and sweet. Set aside.
  3. Cook the egg noodles according to package directions until al dente. Drain well and set aside.
  4. In a large bowl, combine the cream of chicken soup, beef broth, sour cream, Worcestershire sauce, thyme, remaining 1/2 teaspoon salt, and 1/4 teaspoon pepper. Mix until smooth.
  5. Add the cooked chicken, cooked noodles, and caramelized onions to the soup mixture. Stir gently to coat everything evenly.
  6. Fold in 3/4 cup of the Gruyère cheese and all of the Swiss cheese. Pour the mixture into the prepared baking dish.
  7. In a small bowl, mix the remaining 1/4 cup Gruyère cheese with the panko breadcrumbs, if using. Sprinkle this mixture evenly over the top of the casserole.
  8. Bake for 25 to 30 minutes, or until the casserole is bubbly throughout and the cheese topping is melted and lightly browned.
  9. Let the casserole rest for 5 minutes before serving.

Notes

  • For the best French onion flavor, use a high-quality beef broth or onion broth instead of chicken broth.
  • If you want a quicker meal, use a bag of pre-caramelized onions found in the freezer section of your store.
  • To achieve a deeply browned cheese topping, you can place the dish under the broiler for the last 1-2 minutes, watching carefully to prevent burning.

Nutrition

Find it online: https://kingscook.com/french-onion-chicken-noodle-casserole-recipe/