Step-by-step instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a large bowl, combine the shredded chicken, cooked white rice, cream of chicken soup, sour cream, French onion soup mix, mozzarella cheese, and 1 cup of crispy fried onions.
- Season generously with salt and pepper, then stir until all ingredients are well mixed.
- Spread the chicken and rice mixture evenly in the greased baking dish.
- Top with the remaining 1/2 cup of crispy fried onions for added crunch.
- Bake uncovered for 25 to 30 minutes, or until the casserole is bubbly and the top is golden brown.
- Once done, garnish with fresh parsley and serve warm.
Best ways to enjoy it
For an impressive presentation, serve the casserole directly from the baking dish with a sprinkle of chopped parsley on top. Pair it with a simple side salad or steamed vegetables for a well-rounded meal. If you’re feeling extra indulgent, a slice of garlic bread on the side will complement the dish perfectly!
Storage and reheating tips
If you have any leftovers (which you probably won’t), store them in an airtight container in the refrigerator for up to three days. To reheat, simply pop it in the microwave until warmed through or cover and re-bake in the oven at 350°F until heated evenly. You can also freeze the assembled casserole before baking. Just wrap it tightly in plastic wrap and then foil, and it will keep in the freezer for up to three months.
Helpful cooking tips
- For added richness, consider using a blend of cheeses. A touch of cream cheese can also enhance the creaminess of the casserole.
- Don’t skip the fried onions on top; they add that delightful crunch that contrasts beautifully with the soft casserole beneath.
- If you want to amp up the flavor, sauté some garlic or onions before adding to the mix for an aromatic touch.
Creative twists
- Want to switch things up? Try adding sautéed mushrooms or spinach for an earthy flavor and a nutritional boost.
- If you’re feeling adventurous, swap the cream of chicken soup for cream of mushroom or even a homemade Bechamel sauce for a gourmet take.
- You can also make it gluten-free by using gluten-free fried onions and a gluten-free cream soup alternative.

Common questions
What is the prep time for this casserole?
The prep time for French Onion Chicken Rice Casserole is about 15 minutes, making it a quick option for busy nights.
Can I use leftover turkey instead of chicken?
Absolutely! Leftover turkey works wonderfully in this recipe, making it perfect for a post-holiday meal.
How can I make this recipe healthier?
You could opt for brown rice instead of white rice and use low-fat versions of sour cream and cream soup to make it healthier without sacrificing flavor.






