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French Onion Chicken & Rice has tender chunks of chicken, mushrooms, spinach, and rice smothered with a sweet onion and Gruyère Swiss topping. This is outrageously delicious comfort food!
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French Onion Soup Flavors In A Delicious Casserole
French Onion Chicken and Rice is a delicious comfort food casserole that combines the flavors of classic French onion soup with chunks of tender chicken, mushrooms, baby spinach, and cooked rice.
This is an ideal dish for a weeknight family meal, and it’s a great option to serve at a casual dinner party with a side salad and crusty bread.
Why you'll love French Onion Chicken & Rice
- The combination of flavors in every bite is rich, cheesy, savory, and very delicious!
- It’s hearty and filling comfort food that the entire family will love.
- Although this recipe is written to specifically include “French Onion Soup” flavors, it can easily be adapted with other cheeses, meat, or vegetables.
Key Ingredients & Substitutions
- Sweet Onions – We suggest using sweet onions (such as Vidalia) or yellow onion for their mild flavor. Avoid white or red onions – the flavor won’t be the same.
- Unsalted Butter
- Extra Virgin Olive Oil
- White Rice – Choose a long grain white rice or a basmati rice for this dish.
- Spinach – We included fresh baby spinach for its flavor and ease of preparation. Frozen spinach could be used, but you’ll want to fully thaw and drain it (squeeze excess liquid out) before adding to this casserole.
- Mushrooms – We used white button mushrooms in this recipe, but baby Bella (also known as Cremini) can also work.
- Chicken Stock and Cooked Chicken – For easy prep, you can buy a canned or boxed chicken stock as well as a rotisserie chicken and pull off the meat. Or, buy a whole, uncooked chicken and simmer it for an hour in water with herbs and vegetables to make a homemade chicken stock with it. Use the cooked meat in this dish.
- Fresh Garlic
- Herbs and Spices – This dish is seasoned with kosher salt, ground black pepper, dried tarragon, dried thyme, and Worcestershire sauce. (All of the same herbs and spices you’ll find in a French Onion soup!)
- Brandy – Brandy is also a predominant French onion flavor – but white wine or chicken stock can be used. The flavor of the finished dish will change with those swaps, however, since brandy has such a distinctive flavor.
- Heavy Cream
- Gruyère Swiss – Another predominant French onion flavor, this variety of Swiss cheese is worth buying specifically for this dish. The nutty and distinctive flavor of Gruyère can’t be substituted.
Special Tools Needed
- Large Non-Stick Skillet – To caramelize onions.
- Medium to Large Pot – To cook rice and vegetables.
- 9x13x3-inch Oven-Safe Casserole Dish
- Various Measuring Cups and Spoons
- Cutting Board and Sharp Knife
- Wooden Spoon
- Stock Pot – Needed only if you plan to cook the chicken and make your own chicken stock, (see Cooking Tip below) as well as a Large Strainer and Long-Handled Tongs.
How do I make French Onion Chicken & Rice?
- Sauté onions in a large skillet until caramelized. (See How to Make Caramelized Onions.)
- Add garlic, spices, and herbs to the skillet. Cook, then deglaze with brandy and finish with Worcestershire sauce. Set aside.
- Sauté mushrooms, spinach and rice in a pot, then add chicken stock and simmer until rice is cooked.
- Add cooked chicken and cream to the rice, then pour into the casserole dish.
- Cover with cooked onions and top with shredded cheese.
- Broil until golden brown and the cheese is melted.
- Serve immediately.
Tips & Tricks
- If cooking a whole chicken instead of buying a rotisserie chicken and boxed stock, place chicken in a pot with water, onions, garlic, celery, carrots, bay leaf, salt, fresh parsley, bay leaf, and black peppercorns and bring to a boil. Simmer and remove chicken after one hour. Separate meat and place carcass and skin back in pot and cook for another hour to make the stock. Strain and discard solids.
- Getting the onions caramelized is simple in a nonstick pan. Just cook on medium low in three 15-minute intervals, stirring at each interval. Then finish with garlic, spices, herbs, brandy, and Worcestershire sauce.
Frequently Asked Questions
- Can I make French Onion Chicken and Rice ahead of time? Yes, this dish can be made ahead and reheated – but we think it’s best freshly made and served right after coming out of the oven. Any rice dish tends to absorb liquid as it cools so the overall creaminess is best when freshly baked.
- How do I store leftovers? Store covered and refrigerated for up to three days.
- How do I reheat leftovers? Reheat individual portions in the microwave.
- Can I freeze? No, the rice will get mushy once frozen and thawed.
You might like these other Chicken & Rice Recipes:
Click here for more delicious Chicken Recipes!
French Onion Chicken & Rice
French Onion Chicken & Rice has tender chunks of chicken, mushrooms, spinach, and rice smothered with a sweet onion and Gruyère Swiss topping. This is outrageously delicious comfort food!
- Prep Time: 1 hour
- Cook Time: 1 hour
- Total Time: 2 hours
- Yield: 8 servings 1x
- Category: Casserole, entree
- Method: Baked
- Cuisine: French
Ingredients
Scale
3 tablespoons butter, divided
3 tablespoons extra virgin olive oil, divided
3 pounds sweet onion (about four large onions), cut in half and sliced with the grain into thick slices
1 tablespoon fresh garlic, minced
1 1/2 teaspoons kosher salt
1/2 teaspoon freshly ground black pepper
1 teaspoon dry tarragon
1 teaspoon dry thyme
1/3 cup brandy or white wine
1 tablespoon Worcestershire sauce
8 ounces button mushrooms, sliced
1 1/2 cups white uncooked rice
2 cups baby spinach, packed (about 2–3 ounces in weight)
3 cups chicken stock (from homemade or boxed)
1 cup heavy cream
3–4 cups cooked chicken torn into bite sized pieces (from cooking your own chicken or rotisserie)
4 ounces Gruyere Swiss cheese, shredded
Instructions
- Melt two tablespoons of the butter with two tablespoons of the oil in a large nonstick high sided skillet over medium low heat.
- Slice onions in half vertically then slice into thick half moon slices with the grain and add to the pan.
- Let cook untouched for 15 minutes, then stir and cook for 15 minutes more. Gauge how caramelized the onions are and cook for another 10-15 minutes more or longer as needed.
- Turn heat to medium and add garlic and cook one minute. Add salt, pepper, tarragon, and thyme and cook one minute.
- Add brandy off heat to avoid flareup and cook until liquid has evaporated, about five minutes.
- Stir in Worcestershire sauce and remove from heat. Set aside.
- In a medium pot or large sauce pan over medium high heat, add mushrooms in dry without any butter or oil and cook until browned, about 5-10 minutes.
- Add the remaining butter and oil and once melted, add rice, and stir and cook for five minutes to slightly brown.
- Add spinach and cook just to wilt, about one minute.
- Add stock and bring to a simmer. Lower to low heat, cover and cook for 15 minutes.
- Remove lid and stir in cream and chicken and heat just to hot.
- Spray a 9x13x3-inch casserole dish with kitchen pan spray and pour rice mixture in then top with the cooked onions.
- Top with the shredded cheese and broil just until melted, browned and bubbly.
- Serve immediately.
Last updated: August 11, 2023
Have never used Tarragon so it was a new taste I wasn’t expecting, but the dish is very flavorful! My other half loved it. The only thing I wasn’t a fan of was the rice itself was still somewhat crunchy to me. Is there a workaround for this? I do notice that when I’ve reheated with a little butter its the perfect texture for me.
Hi Thena – You can add more chicken stock and bake it a little longer for a softer rice texture.
Came out pretty good. I couldn’t find cooking wine or didn’t have access to bourbon so I used onion soup mix with the onions.
Thank you!
Is there a substitute for the brandy or wine?
You can swap in beef or chicken stock. Just note that the distinctive “french onion” flavor is from the brandy…there really isn’t a substitute for that.
Due to health reasons I can’t use heavy cream–has anyone tried it with low-fat milk? I just HAVE to make this recipe, it’s everything I love about food-warm, cozy, and full of flavor. Please let me know if it will still turn out with a low-fat milk. (coronary disease, so have to steer clear of high fats)
Sure – the overall dish might have a slightly less creamy texture but you can use the lower fat milk if you wish.
Tasty! My husband and baby both enjoyed! Cut down the rice and broth a bit, as I didn’t need 8 serving. I also substituted chicken broth for homemade beef broth to give it a richer flavor.
Glad you enjoyed the recipe Anna.
This is delicious! I can’t have dairy so I subbed those items for alternatives.
Thanks Erica!
I don’t normally leave reviews but this was one of the best recipes I’ve had. The depth of flavor was amazing! . I used a rotisserie chicken I had. It was nice to have a recipe that didn’t turn it to mush! I didn’t have brandy but used sweet vermouth (my go to for cooking) otherwise used the listed ingredients- will DEFINETLY make this again!
Thank you Fox!
This is worth the time to make it.
Thanks Shelley!
This was delicious! I appreciated writing that prep was one hour. It took me longer but close. The recipe took some time but step by step, it was a wonderful and hearty meal. The onions had the best flavor. The chicken, rice part of the dish may need some salt. Overall, a very good dish.
Thanks Kathy!
Making tonight – this is a good idea.
Spray a 9x13x30inch casserole dish – I don’t think so…
Oops – thanks for pointing out the mistake Mitch! (9x13x3…) Fixing now. How you enjoy the casserole!