French Onion Soup Chicken is a cozy and flavorful dinner inspired by the classic soup. This delightful dish features tender chicken thighs, roasted green beans, and melted cheddar cheese, making it a perfect weeknight meal. The combination of savory onions and hearty chicken creates a comforting experience that warms the soul. Whether you’re a fan of French cuisine or simply looking for a new dinner idea, this recipe is sure to become a family favorite.

Why You’ll Love This French Onion Soup Chicken
This French onion soup chicken dish is not just delicious but also incredibly satisfying. Here are several reasons why you’ll adore it:
- It’s an easy French onion chicken meal that requires minimal prep time.
- The dish is packed with protein from the chicken thighs, making it a hearty option.
- This recipe utilizes simple ingredients, making it accessible for everyone.
- It’s a gluten-free option, perfect for those with dietary restrictions.
- Perfect for meal prep, this dish can be made ahead and stored easily.
- You can customize it with different vegetables or toppings to suit your taste.
With its blend of flavors and textures, this savory French onion chicken dish stands out as a comforting favorite!
Ingredients for French Onion Soup Chicken
Gather these items:
- 2 yellow onions, thinly sliced
- 1/4 cup butter, melted (divided)
- 1 tsp salt, divided
- 1 tsp black pepper, divided
- 2 lbs chicken thighs, boneless and skinless
- 1 packet onion soup mix
- 1 cup reduced sodium beef broth
- 3 garlic cloves, pressed
- 1/4 cup flat leafed parsley, chopped, divided
- 4 cups green beans, cut in half
- 3 cups sourdough bread, cubed into 1 inch squares
- 1 cup aged cheddar, shredded
How to Make French Onion Soup Chicken Step-by-Step
- Step 1: Preheat the oven to 375F and line a large sheet pan with parchment paper.
- Step 2: To the sheet pan add the onions, drizzle with 1 tbsp of melted butter and sprinkle with ½ tsp each of salt and black pepper. Toss to coat. Arrange in a single layer and bake for 30 minutes to soften.
- Step 3: While the onions are in the oven, rub the chicken with 2 tbsp from the onion soup mix along with the remaining ½ tsp each of salt and black pepper.
- Step 4: Whisk together the remaining 3 tbsp of butter with the remainder of the onion soup mix, beef broth, garlic, and half of the parsley.
- Step 5: When the onions are soft, add green beans and sourdough bread to the sheet pan. Drizzle with the butter mixture and toss to coat.
- Step 6: Arrange chicken thighs within the onions and beans. Top each chicken breast with a few of the onions and bake for 25-30 minutes, or until the internal temperature of the chicken reaches 165F.
- Step 7: Once the chicken is cooked, sprinkle the sheet pan with aged cheddar and bake for another 8-10 minutes to melt the cheese. Serve with a sprinkle of parsley and enjoy!
Pro Tips for the Perfect French Onion Soup Chicken
Keep these in mind:
- Use a mix of sweet and yellow onions for a more complex flavor.
- Don’t rush the cooking; allowing the onions to caramelize enhances sweetness.
- Feel free to add mushrooms or bell peppers for added depth.
These tips will help ensure your dish turns out just right! Remember, this is a baking method that allows flavors to meld beautifully.

Best Ways to Serve French Onion Soup Chicken
There are several ways to enjoy this dish:
- Serve it over a bed of rice for a heartier meal.
- Pair it with a fresh garden salad for a balanced dinner.
- Top it with crispy fried onions for extra crunch and flavor.
This French onion chicken casserole can easily be transformed into a family-style dish!
How to Store and Reheat French Onion Soup Chicken
To store leftovers, place them in an airtight container in the refrigerator. This dish can be reheated in the oven or microwave. For meal prep enthusiasts, this dish is perfect for preparing ahead, saving you time during busy weekdays.
Frequently Asked Questions About French Onion Soup Chicken
What’s the secret to perfect French Onion Soup Chicken?
The secret lies in the slow caramelization of the onions which brings out their natural sweetness. Use fresh ingredients for optimal flavor.
Can I make French Onion Soup Chicken ahead of time?
Yes! This dish can be assembled and refrigerated before baking, making it a great option for meal prep.
How do I avoid common mistakes with French Onion Soup Chicken?
Ensure the chicken is fully cooked by checking its internal temperature and avoid overcooking the onions to maintain their texture.
Variations of French Onion Soup Chicken You Can Try
Explore these ideas:
- Use different cheeses like Gruyère for a more authentic flavor.
- Add spinach or kale for a healthy French onion chicken option.
- Replace chicken thighs with pork chops for a different protein.
These French onion soup chicken variations can help you customize the dish to fit your family’s taste!

For more delicious recipes, check out our Baked Lemon Rosemary Chicken or Creamy Tuscan Scallops. If you’re looking for a quick meal, try our Hidden Valley Ranch Chicken recipe!
For more tips on cooking chicken, you can refer to this guide on cooking chicken thighs.
Print
Delicious French Onion Soup Chicken Dinner Recipe
- Total Time: 90 minutes
- Yield: 4 servings 1x
- Diet: Gluten Free
Description
This sheet pan French Onion Soup Chicken is a cozy, flavourful dinner inspired by the classic soup, made with tender chicken thighs, roasted beans and melted cheddar.
Ingredients
- 2 yellow onions, thinly sliced
- 1/4 cup butter, melted (divided)
- 1 tsp salt, divided
- 1 tsp black pepper, divided
- 2 lbs chicken thighs, boneless and skinless
- 1 packet onion soup mix
- 1 cup reduced sodium beef broth
- 3 garlic cloves, pressed
- 1/4 cup flat leafed parsley, chopped, divided
- 4 cups green beans, cut in half
- 3 cups sourdough bread, cubed into 1 inch squares
- 1 cup aged cheddar, shredded
Instructions
- Preheat the oven to 375F and line a large sheet pan with parchment paper.
- To the sheet pan add the onions, drizzle with 1 tbsp of melted butter and sprinkle with ½ tsp each of salt and black pepper. Toss to coat. Arrange in a single layer and bake for 30 minutes to soften.
- While the onions are in the oven, rub the chicken with 2 tbsp from the onion soup mix along with the remaining ½ tsp each of salt and black pepper.
- Whisk together the remaining 3 tbsp of butter with the remainder of the onion soup mix, beef broth, garlic and half of the parsley.
- When the onions are soft, add green beans and sourdough bread to the sheet pan. Drizzle with the butter mixture and toss to coat.
- Arrange chicken thighs within the onions and beans. Top each chicken breast with a few of the onions and bake for 25-30 minutes, or until the internal temperature of the chicken reaches 165F.
- Once the chicken is cooked, sprinkle the sheet pan with aged cheddar and bake for another 8-10 minutes to melt the cheese. Serve with a sprinkle of parsley and enjoy!
Notes
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Category: Dinner
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 1 serving
- Calories: 577
- Sugar: 4 g
- Sodium: 800 mg
- Fat: 40 g
- Saturated Fat: 20 g
- Unsaturated Fat: 15 g
- Trans Fat: 0 g
- Carbohydrates: 22 g
- Fiber: 2 g
- Protein: 34 g
- Cholesterol: 120 mg