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French Onion Chicken Casserole


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  • Author: Sophie
  • Total Time: 1 hour
  • Yield: 6 servings 1x

Description

Indulge in a warm and cheesy French onion chicken casserole, featuring tender chicken, sweet caramelized onions, and rich Gruyère cheese—perfect for cozy evenings.


Ingredients

Scale

For the Casserole:

  • 34 boneless, skinless chicken breasts
  • 3 large yellow onions (or mix with red onions)
  • 3 cloves garlic, minced
  • 2 cups beef broth
  • 1 packet French onion soup mix
  • 2 cups shredded Gruyère cheese

Instructions

  1. 1. Preheat and Prepare
  2. Preheat your oven to 350°F (175°C). Lightly spray a large baking dish with nonstick cooking spray.
  3. 2. Sauté Those Onions
  4. In a skillet over medium heat, add a drizzle of olive oil. Sauté thinly sliced onions for about 15 minutes until soft and caramelized, stirring occasionally.
  5. 3. Season the Chicken
  6. While the onions are cooking, season the chicken breasts with salt, pepper, and a sprinkle of garlic powder.
  7. 4. Assemble It All Together
  8. In the prepared baking dish, layer the seasoned chicken at the bottom. Spread the caramelized onions over the chicken and sprinkle the French onion soup mix on top.
  9. 5. Add Broth and Bake
  10. Pour beef broth evenly over everything until it just covers the chicken. Cover with foil and bake for about 30 minutes or until cooked through.
  11. 6. Cheese It Up!
  12. Remove foil and generously sprinkle shredded Gruyère cheese over the casserole. Return to the oven uncovered for an additional 10-15 minutes or until bubbly and golden brown.
  13. 7. Serve
  14. Let it rest for a few minutes before serving.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Main
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 cup (240g)
  • Calories: 400
  • Sugar: 5g
  • Sodium: 800mg
  • Fat: 18g
  • Saturated Fat: 10g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 1g
  • Protein: 37g
  • Cholesterol: 110mg